There’s very little I can add here. I, too, am not keen on many of the things listed, but a few things come to mind:
– Things that their fans refer to by initial. Common sense tells me that rendering “Star Trek; the Next Generation” as “ST:TNG” makes for a shorter and easier way of writing it. But many times, the use of such initials seems to be shorthand for “this discussion is for real fans only; anybody who doesn’t attend the cons, collect the DVDs, and wear the costumes need not participate in the discussion.” As others have mentioned, this pertains to BtVS, but also to LOTR, AI, SW, HP, and the like.
– In a similar vein, threadshitting. No matter how much the above bothers me, I’m not about to go into such a thread and post that all fans of ABCD are obsessed fanboys who need to get a life and move out of their parents’ basements. Yet some people, for some reason, feel the need to go into a discussion of some folks’ favourite thing and tell them that it sucks/blows/is dangerous/shouldn’t be mentioned where children can hear, etc. etc. etc. If you don’t like it stay out of it–as others have mentioned, you’re unlikely to change anybody’s mind.
– Another vote for the political correctness. No, some words and phrases should not be used. But many times, the discussion about a topic is stifled by digressions into the propriety (or impropriety) of the words or phrases used. It seems to me that a newbie who uses a politically-incorrect word or phrase is more of a matter for a mod to take care of, rather than a series of posters who seem determined to squelch discussion of the topic in favour of reminding all (over and over and over) that it is politically incorrect to use a certain word or phrase. One reminder to the poster is, IMHO, enough; if they continue to use the offensive word or phrase, report them and/or their posts to a moderator for further action as the mod deems necessary.
– The outrage that some people feel about news reports. No, some things that happen in our world are not nice. But pedophiles who stalk children, fanatics who murder innocents, mothers who kill their own kids, and folks who strangle puppies were all with us long before the Internet. I don’t recall anybody in, oh, 1987, seething with the rage of a dozen white-hot suns over something they read in a newspaper to the point where they shared their rage with everybody around them. What is it about the Internet that makes people want to one-up others with their outrage and their fury? Honestly, at times, these posts seem to be a contest–who can be angrier over something?