You'll need to narrow it down a bit more, mate!
....the endless drivel posted by ABITB and his many, many aliases. I walked away several times because every single thread was hijacked eventually.
This. I'm glad I'm not the only one.
attention-whoring posters who deliberately provoke negative emotions and offend at every turn
That's it for me. For example, when Col or Flyer are telling someone to **** off in the wake of yet another shambles, it's none of this. It's honest, raw emotion and passion from people who obviously care. What I see on here too many times is a calculated attempt to provoke. Not provoke debate, not to share something, a point of view, with others. Just a deliberate attempt to hurt, cause outrage and thereby, with the help of sock puppets, make the perpetrator centre of attention.
A sockpuppet is an online identity used for purposes of deception. The term—a reference to the manipulation of a simple hand puppet made from a sock—originally referred to a false identity assumed by a member of an internet community who spoke to, or about himself while pretending to be another person.[1] The term now includes other uses of misleading online identities, such as those created to praise, defend or support a third party or organization,[2] or to circumvent a suspension or ban from a website. A significant difference between the use of a pseudonym[3] and the creation of a sockpuppet is that the sockpuppet poses as an independent third-party unaffiliated with the puppeteer. Many online communities have a policy of blocking sockpuppets.

