I think I first made a Tumblr back in, maybe, 2011?
It's been a long time and a wild ride, I'm pretty sure I've came across almost every community and sub-category on that site. I feel like on the whole, Tumblr is an awful site, rather like a disease, honestly in the way it has the power to make people act a certain way and say certain things (Someone on Tumblr says there 72 genders - heck, guess there's 72 genders now!).
I have nothing against certain political blogs or users, it'd be great if everyone, from alt-right to alt-left could discuss their political beliefs, but that's not the case. It's as simple as saying one thing, before there's 6 call-out posts calling you a racist, a TERF, doxxing you, just for stating one opinion. The identity politics are awful. Not even going into the whole ""LGBT community"" (massive quotations) there, all it is is exposing young and impressionable people to utter lies and propaganda.
The amount of illegal activity that goes on there is pretty appalling too, and it's scary knowing how available Tumblr makes that to children. I remember being 13-15 and getting involved in illegal activity because, heck, I was a young teenager, going through a hell of a lot at that point, and I was exposed to this. Not only that, but I got myself involved in communities that promote serious physical harm, and worsened my physical issues at the time (I realise all this is down to me and not Tumblr, I still do resent it all being there and glamorised so much). Do Tumblr even care about the level of illegal stuff that is posted about on their site? Never mind the massive community of actual pedophiles, anything happening there, just letting them be?
On the plus side, I do feel like it is possible to have a positive experience on Tumblr, I have a few accounts that I use casually, and I don't have much of an issue nowadays. I stay away from tags that I know are likely to only contain drama. I really do like how Tumblr tends to have a "community" for everyone, regardless if their interest is commercially accepted or not, people may not really have an other place to talk about, express, or be involved in certain things, unfortunately that come with the downside of the "MAP" community and suchlike. I feel as an adult, my Tumblr experience is much more pleasant, I do still worry about the young minds being exposed to things they shouldn't be exposed to, though.