as a rule, i try to avoid anyone who shares my name, anything very similar, or sometimes to the extent of a name i went by recently. i've had issues of people copying me in the past, and i just try to avoid this.
i also avoid people who are too similar to me in the characters they relate to. some people think it's immature to do this, but it wouldn't be an enjoyable experience for either of us, trust me.
for tumblr, i don't mind who follows me as long as links are read and respected. i fluctuate on whats comfortable for me and what isn't, but i'll never softblock anyone on tumblr.
for instant messaging programs (skype, discord, line, et cetera), i prefer that we've interacted multiple times before adding me, or at least you ask me beforehand. i never message anyone first, and i'm very reclusive when it comes to who i talk to privately. don't be offended if i don't respond to dms. it's best to interact with me on twitter or tumblr.
for twitter, i have literally no rules as to who follows me, besides what's already stated. i'm very loud on twitter, and don't shy away from speaking my mind. i'm very opinionated, and if something i say upsets you, don't be afraid to speak up, unfollow, softblock, et cetera.
there are some things that i am very strict on my opinions of, and if you disagree, i may break mutuals or speak up. i try my hardest not to indirect or vague about issues that upset me, because i've had issues with that in the past.
i may softblock you on twitter if you make me uncomfortable, or i just don't enjoy being in a mutual. don't be afraid to dm me, unless i have you hardblocked. don't ask me to unblock you. i clear out my blocklist every so often.
if you're going to unfollow me over anything, please tell me beforehand. you don't have to tell me why or anything, i just would like to know so i don't accidentally follow again, or interact with you unknowingly.
i rarely unfollow mutuals, i only soft/hardblock. if you prefer unfollowing over softblocking, i'll remember to do that beforehand if you have it stated on your profile.
and seriously, please don't follow me if you're under the age of 13.