1- If you don’t like someone’s blog, don’t follow it, visit it or send messages to it.
2- If you don’t like a certain topic, don’t follow people who spend the majority of their Tumblr lives talking about said topic. Also, see Tumblr Savior.
3- If you see someone doing something problematic just to get attention, do not take their side when the attention they get is negative.
4- If you’re old enough to talk, you are old enough to listen. Age is not an alibi for bad behavior.
5- If you are “Sick of” or “Hate” a certain group on Tumblr, dedicate exactly zero percent of your time to telling everyone. Also, see Tumblr Savior.
6- If you are “Sick of” or “Hate” a certain person on Tumblr, dedicate exactly zero percent of your time to telling everyone. Also, see Tumblr Savior.
7- Your fandom is the best. Do not let anyone tell you any different!
8- Don’t live by the numbers. If your follower count (or worse, someone else’s follower count) matters more than the content of your posts, it’s time to find a new hobby.
9- Photoshop is a scandalous creature! Nobody has to know if you fell for that one picture that one time. I’m not gonna tell. You’re not gonna tell. We don’t even have to talk about it.
10- No matter what your expertise, there is someone on this site right at this very moment, who knows more about that subject than you do. It’s okay. It’s not a contest.