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.
Contested Sequel: It's far from unanimous, but there's some debate over the quality of World Demise due to its shift toward a more conventional three-chorus song structure on about half the album, including the below-mentioned "Don't Care". On the flipside Back From The Dead is regarded as a low point by most fans and critics due to weaker performances on the part of all the band, and rather lifeless production.
Dork Age: Back from the Dead is universally seen as one of these, and both Xecutioner's Return and Darkest Day are widely hated as well for what is seen as anemic, unimaginative riffing and songwriting coupled with an overabundance of needlessly overplayed shred solos. Finding an Obituary fan who truly enjoys both of the Santolla-era albums is almost as hard as finding one who enjoys Back from the Dead.
Never Live It Down: Allen West's post-Obituary/Six Feet Under life has become one big string of these, with five DUI arrests (in the state of Florida, three major violations makes one eligible for habitual offender status, which is an automatic five-year license revocation; five of them got him an eight-month prison sentence and most likely rendered him permanently ineligible to legally drive in the state) on his record, not to mention an arrest in March of 2013 for running a meth lab in his house that was discovered after he called the police to report a burglary.
Replacement Scrappy: Ralph Santolla, and how. The hatred that he got for his performances on Xecutioner's Return and Darkest Day was downright staggering.