These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The Domestic Abuse storyline. A full year after it started, it appeared to have reached it's conclusion - only for the Kirsty to find out Tyrone was planning to leave her immediately after they got married so he could get parental rights to his daughter. Kirsty then fell down the stairs after Tyrone moved out of the way of her attempted strike and accused him of abusing her.
Tracy Barlow's obsession with Steve Macdonald. Even Kate Ford, who plays Tracy, is sick of it at this point.
Celebrity Paradox: Nobody ever watches TV; Nobody in the street seems to have noticed a sudden infestation of meerkats, a species native to South Africa, and are asking whether this merits intervention by the zoo, the RSPCA, or Rentokil (An insurance company using anthropomorphic meerkats as mascots is "sponsoring" the show, with commercials at the start and finish of each segment.These feature the lovable animals drinking in the Rovers, dining in Roy's café, and doing other cute meerkat things.
Kevin Webster (during the War of the Websters storyline). His wife Sally was a borderline example too, though she at least got several Take That, Scrappy! moments.
Nick Tilsey. Although he has always been seen as Gail's "perfect" child, he has horrendously backslid into this since being portrayed by Ben Price.
Memetic Mutation: Granted, it was before the internet became as prominent, but the "Free The Weatherfield One" campaigns that sprung up across the UK after Deirdre Rachid (presently Barlow) was falsely imprisoned.
Ascended Meme: You know a storylines successful, when the Prime Minister of the time comments about it in Parliament.
Tina. She gradually became this in the eyes of the fans of the show, after her seemingly out of the blue personality change (cheating with Peter after knowing full well how horrible it is — see above) and her Jerkass behaviour (threatening to report Rob and Tracy's illegal merchandise simply out of spite) before she died.
Another cause was her being featured too often in every scene leading up to her death.
Janice Battersby. There have been many more over the years, but most are either Rescued from the Scrappy Heap or written out, whereas Janice has remained for years despite the fan's dislike.
Kevin got very unlikeable too in recent storylines.
Recent storylines? Kevin was arguably worse back in 1997 and 1998 with his affair with Natalie Horrocks and Sally's affair with Greg Kelly.
Sean Tully. Very hated by fans, some suggesting he is still there because he is friends with the producer.
Stoic Woobie: Eileeen Grimshaw refused to cry in public even at her father's funeral. Occasionally slides into Jerkass when she expresses affection through yelling.
This is of course a regular trope, but a particularly memorable occasion was a 80s scene of fan favourite Hilda Ogden opening a parcel containing her recently deceased husband (and fellow fan favourite) Stan's glasses, and her subsequent breakdown into tears.
The Fiftieth Anniversary. Explosion, train crash, deaths, war flashbacks, fires, injuries.
John Stape's death.
Hayley Cropper's death. Oh dear GOD.
True Art Is Incomprehensible: Played with in an episode. Toyah Battersby, an art student, tries to pass off her slovenly step-father Les' chair, covered in debris such as empty beer cans and old cigarette stubs, as her art project to her tutor. He tells her about an occasion where he had a student who tried to pass off a pile of bricks as his art project, which the tutor didn't buy, and he failed him. He then asks Toyah to explain how her "project" is anything other than a ratty chair covered in rubbish. She improvises a pretentious explanation about how it represents the British working class, which the tutor doesn't buy, until he sees Les for himself, and agrees it is an accurate representation of him, which causes him to not only give her a high grade, but also recommend her project for an exhibit. Its particularly funny because Toyah literally threw the whole thing together at the last minute using the first things that came to hand, because she had neglected her project until only moments before the tutor turned up at her house.
Unintentionally Unsympathetic: Nick Tilsley, especially during the whole "Who's the Daddy?" storyline and its aftermath. As unfortunate as it is to have lasting brain damage, it was still his own fault for sleeping with his brother's wife on Christmas. He should have known by now who his brother was, what, if pushed far enough, he was capable of and should have just manned up and confess to David and Leanne in the first place. Plus, in addition to being an unsympathetic character already, it may come off as a form of Laser-Guided Karma for sleeping with his then-best friend's wife in a year earlier while said ex-best friend was recovering from serious injuries he had sustained.
After their mother died in 2013, Asha and Aadi Alahan.
Tyrone Dobbs. Full stop.
David Platt. It was hard not to be feel sorry for him when he was kicked out of his own house, denied access to his kids and treated like a complete monster in late 2013. All for 'trying to kill' his brother Nick (which was a genuine accident).
Todd Grimshaw. He was not allowed to see his premature baby son Billy when he was alive (as Sarah and Gail wouldn't let him). He only got to speak to him at the baby's funeral.