People that are constantly involved in random drama - Even when they can be right and make good points, their contribution to every big or little argument/feud going on makes me question their motives and levels of toxicity.
Community celebrities - It's not true for all popular posters but throughout all the communities I've been into across a few years of RP, I definitely noticed that the bigger names have bigger chances to develop a huge ego. I avoid them unless I find evidence that they are actually nice.
Use of RP tags in the search info - I know that this is a little specific but I noticed that people that sports those 'M/[insert length post reference here]/whatever' can really struggle with committing to specific RP partners and completely forget or ignore promises they made to you because they jump from random to random so much they just forget about you in the mix. Not always true, of course and maybe I've simply been unlucky. Still my experience.
