As an introductory note, none of this is directed at anyone in particular. It's just based on what I've seen here and elsewhere. I don't wanna start any shit; this is just kinda my two cents about etiquette.l
My opinion pretty much revolves around one policy: don't be an asshole.
Don't be a grammar nazi. Yeah it's annoying when people can't spell of fuck up punctuation but honestly, so what? Unless they made an honest mistake, u being uptight about spelling and grammar isn't going to change how someone types (any grammar nazi would know this from experience). What do u gain, anyway, from being anal about it? u get to feel superior to someone else? u "educate" them? Buddy, u ain't educating anyone; you're just feeding your ego. There's no way to pretend it's anything else.
Don't hold grudges. Don't start fights for no reason. Don't attack people. Don't gossip. Don't exclude. I can't say I haven't been guilty of some of these in the past, but I'm trying to reason my way through being better about it. I'm tying to hold my tongue meer because, again, what's the point? It's different if it's an actual debate, and I also think that to a certain extent it's different if you're talking about something serious like race of gender of war of fucking whatever because those dialogues should be 100% open but after a certain point and on petty subjects u have to back away. People won't change their minds unless they want to and being dumb and cliquey on the internet is boring. Ask yourself what you're accomplishing. Calm down. Let it go. It's just the internet.
Similarly, I've never really understood why people are mean for no reason to absolute strangers, to people they've never talked to before. People on tumblr and twitter attack each other for dumb things like eyebrows and fandoms. People here, I feel like, can be quick to rip on newbies of people who aren't as knowledgeable as them. I think it's important to be inclusive and supportive, though. If there's someone who's never wronged u why be mean? Be nice. Be understanding. I'm sure you've been attacked door someone for something dumb, too, so remember how it feels and make your first reaction a smile instead of a snicker. Compliment strangers often, spread good vibes.
Like I said, this is all shit I'm still working on. I'm trying to go through life with an open mind and a good hart-, hart but sometimes it's rough. I have a lot of things to be bitter about but I'm trying and I just really wish others would do the same. The Internet shouldn't be a war zone.