1. know who you talk to if you want to stay anonymous, use an anonymous platform. HOWEVER, that guy you entered a twitter shitstorm with? might as well be some 12 year old, broken english, russian troll. that chick who messaged you? 56 year old chinese gypsy.
2. mark content type sarcasm is (imo) very important. but in the wrong context, lack of context, it can be horribly confused.
3. exact timestamp I don't want to see a post is from "few months ago" (hidden, in a small text similar to the background color). I want posts to be color coded by age & type.
4. exact definitions my language isn't the same as your language. even if we both speak English, there are different meanings to different cultures, regions, etc. if something is ambiguous or unknown, I'd like to get a dictionary definition as reference.
5. I don't care about likes. or views. I want to see views/likes ratio. if a post has 1000 likes is it good? maybe, unless it has 1m impressions. or it's exceptional if it has 2000 impressions. that's a far better measure for quality
and there's more if I just keep thinking about it. probably a lot more