Broken Base: Fans are divided on the scene where the CMC are shunned by the whole town once their identities get found out somehow, whether everypony's reaction believable or not, and more so, whether it was justified or hurtful.
Rarity's reaction to one of Gabby Gums's articles became exploitable before the episode even aired.
Featherweight, peering into the basement of the school with camera at the ready, has quickly morphed to an image exploitable, "Peepingweight."
The shot of the CMC bored out of their minds pops up during any hiatus between seasons.
Some Anvils Need to Be Dropped: Reporters and/or their bosses going to unethical lengths to get the scoop and what's more, lying and withholding facts just to get a good story? Sensational news that everyone snaps up despite it being insensitive and low-brow? Reputations ruined by ugly revealing news and paparazzi? All Truth in Television, just look at the prevalence of tabloids and sensationalized news on the papers and TV.
They Wasted a Perfectly Good Plot: Many felt the shunning the CMC wouldve worked better if the reactions from the citizens of Ponyville was instead Played for Laughs by having their reactions and replies done in a zany, over the top way, especially with Word of God conforming their shunning was so they don't end up on the newspaper in an out of context story, as opposed to the mean spirited way they were portrayed.
Unintentionally Unsympathetic: Word of God is that the residents of Ponyville shunning of CMC was meant to be justified as "them trying to avoid talking to them because anything they say could end up in print out of context." But they admit that nuance wasn't effectively conveyed in the final product, leading it to be viewed as undeservedly cruel.
What an Idiot!: Cheerilee or ANY pony for that matter never bothered to actually figure out what the hell is going on with Gabby Gums and instead just shun the closest people they could find and expect things to be better.
The Woobie: While it is easy to blame the CMC for all the public humiliation they caused, you can't help but feel for the three poor fillies when they're shunned by the entire town, including their own friends and relatives, after word gets out about them being Gabby Gums.