Ability to block/mute accounts

Feature request from the 2018 feedback thread:

I want the ability to block/mute accounts. I appreciate that a lot of Seamonkey comedy nerds want to use Twit-Arr to workshop their craft through memes, but that also adds so much noise to the signal. It's probably far too much to ask the joke writers to move to the forums, but a way to at least mute some of the meme accounts that don't interest me would be nice.