I think we should allow both questions and answers in both English and Chinese.
I know I wasn't here when the site was proposed so I'm not sure what the original idea was. But I was active on the early Spanish site and they wanted to cater both to Spanish learners via English and Spanish speakers who wanted to learn more about their language, much like on ...
I've been trying my best to moderator these posts and it is a problem.
There are a few things everyone can do:
Can it be improved by editing? Then jump in and edit it.
Is it just a crap answer? Then downvote it.
Is it a distraction or noise? Then flag it.
Even if the answer is old go ahead and do the above actions. We want a site which is useful even when ...
TL;DR: Comments are temporary: comments in general (and particularly comment floods) are regularly deleted throughout Stack Exchange. Answering in comments is a misuse of the site and often indicates low-quality answers. In this case, there's also issues of potential plagiarism.
If you want your answers-in-comments to stay, I suggest converting them into ...
Your comments that have been deleted were first flagged by others as:
It's no longer needed.
This comment is outdated, conversational or not relevant to this post.
They then showed up on the moderator queue where they were deleted.
You might want to review when you should comment and when you should not comment.
Help Center > Privileges > comment ...
I think we'll always get a mixture of quality levels, and I don't have a guaranteed answer. As a guess, though, including the research you've already done on the question will give more context about the kind of information you're looking for.