This is a public request to all Meta Stack Exchange users. There's a certain behaviour pattern that's... not great, but common, and this is basically a request to do this differently. More specifically: it's a request to use the system as it should be used, and as it's used by every other site on the network.
It's this: People will completely and substantially answer a question to total satisfaction. Except, they'll do it in comments. That leaves the question answered, but not marked as having any answers or the possibility of one being accepted, left to be bumped by the Community for having 0 answers. It also means we can't use an important half of the voting mechanism to rate your answer, and we can't edit it to improve it. Until someone comes along to repeat basically what you wrote as an answer, which it should've been to begin with.
I don't know exactly what leads people to do this, though Why do some people answer in comments? leads to some insights. Answering a question is not what comments are for, even on a meta site. They're not used this way anywhere else on the network either, and whilst Meta is special, it isn't special in this way. Imagine if 10% of questions on your SE site of choice were answered in comments and that was the end of it, until someone felt like repeating that answer in an actual answer: that would be bad, and it's no better if it happens here.
So please: If you're answering the question, answer it in an answer, not in a comment.
Thanks for reading.