There are parts of Tumblr that are horrible but it's like that with any social media.
I don't have a Tumblr but I've considered getting one for a while now.
Really depends WHERE on tumblr you go
I personally love it very much because I found an awesome community and a lot of friends and it helped a whole lot with learning to love myself. But yes, that's just my community.
I honestly think, while it seems to be a great place for tolerance and acceptance, it actually teaches a lot of very bad stuff disguised as being oh so good. I'm talking things like "all men are *******s", "it's ok to insult white people because of their skin color", "gay people can't possibly be jerks ever". I think that's dangerous and stupid.
Tumblr people tend to take a lot of things WAY too far. And there's a wa of labelling anything that can possibly be labelled. But I guess I still prefer a lot of them over the typical "Facebookperson".
i personally use it and i like it a lot, but wasn't bothered to use it recently. i tbh don't really follow tumblr blogs that are community-based or fandom-based because i don't want to be in any drama on that site
i don't really see much horrible stuff on my tumblr because i follow people for their images rather than topics and such
but it's a nice website, but the app sucks and the post limit sucks
and the amount of memes is good..very satisfying..
You have to be careful with who you follow, I really enjoy using it for ACNL inspiration, pictures of make-up, outfit inspiration, tips, advice... however lots of the people on it can get really irritating >->
For instance there's lots of attention seekers on it, people that brag way too much, think they're above everyone... as I said, you have to be really careful with who you follow. I like the format and there are lots of helpful blogs, but there are lots of annoying people. It's also great for ACNL inspiration!
Like everyone else says, it all depends on what area of Tumblr you go into, and ultimately how much you allow yourself to get absorbed into it. Depending on the topic you can never take everything for what they say, gotta make sure they're either sourced, or do a quick google search yourself!
I'm personally more on the side with cute stuff, food, and anime, with hints of social justice. It's good to balance the heavy real life-related things with more positive things. But of course since it's Tumblr, you also need to be wary of people who make their posts sound positive, but they're actually not. Sometimes you have to be able to recognize when even though someone's words might not have ill-intentions, what they're suggesting is actually harmful to whatever type of audience their post is geared towards.