Rather than put a thousand edits on that other post that isn't about this...
Trying use these two tags together, the second one disappears when I save the post.
Which is a problem, because functionally these are two different tags on cohost.
I'll see if this happens on this same post, because both #Cohost ui and #cohost ui exist and have been used. And if people can't decide if the meta tag is #cohost or #Cohost, I want to be able to post to both as long as they continue to be two separate tags.
Edit: sure enough, all the "duplicates" went away. So you can't post simultaneously to #cohost and #Cohost. Which as far as I can tell #Cohost doesn't currently have posts, but I am not a fan of being forced into using the autofill capitalization either (see: SuperbOwl, which means anyone posting about the SuperBowl has to go along with a joke they may or may not find funny, or my own Margaret AtWooD, which is just weird and unpleasant and seemingly now permanent from a user standpoint).
My proposed solution would be to a) not have tags be case sensitive and b) not suggest a tag until it has been used some set number of times, and ideally by multiple users.