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.
Covered Up - While not completely overshadowing the original, their cover of Gary Numan's "Cars" is usually the one that appears most in commercials and other media. Hell, it fittingly appeared in two racing games: Test Drive 6 and the American release of Gran Turismo 2! Perhaps subverted, considering Gary Numan does the vocals on the cover, but still. They've pretty much completely covered up "Dog Day Sunrise" (originally by Head of David) and "0~0" (originally by Wiseblood), though.
Creator Backlash / Fanon Discontinuity - The band (and their fans) have shown disdain for their 2005 album Transgression, calling it 'rushed' and 'forced' due to heavy Executive Meddling. Fans are mixed about it due to the poor production and rather mellow second half; they were especially critical that they included a cover of a U2 song on it. Guitarist Christian Olde Wolbers even had to walk out of the studio during recording multiple times because he was not happy with the way his guitar playing sounded. Vocalist Burton C. Bell, however, likes the album.
In recent times, however, some fans have warmed up to the album. However, if you ask almost any metalhead what the band's worst album is, chances are they'll say that or Digimortal, which has also gotten a bit of backlash due to its heavy Nu Metal influence.
Contested Sequel: The Industrialist. Also Mechanize, though to a slightly smaller extent.
Nightmare Fuel - The song 'Slave Labor' is about self-immolation, which means burning yourself alive.
Hell, many of their songs easily qualify, especially those appearing on Soul of a New Machine and Concrete (because these albums are Death Metal, a genre considered as Nightmare Fuel incarnate for the average listener).