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 answers; don't expect diamond moderators to bend the rules for you in particular.
You're essentially requesting that diamond moderators allow you to have a unique privilege to "answer using multiple comments", a privilege not given to any other user anywhere on Stack Exchange. Literally even the CEO of Stack Exchange does not have this privilege. Nobody does. The answer is surely no.
This puts your answers-in-comments above actual answers, prevents users from downvoting them, and inhibits other answerers. It violates one of the most fundamental aspects of Stack Exchange:
Good answers are voted up and rise to the top.
The best answers show up first so that they are always easy to find.
Welcome to Chinese Language Stack Exchange
We're not talking about a user tentatively answering in comments because their unsure the question might be immediately edited afterwards. We're talking about years of flooding the site with comments. We're also talking about comments which are primarily copy/paste from a dictionary, which raises issues of plagiarism.
user3306356♦'s answer talks about how these comments are being flagged by users, which is unsurprising: I'm among those who flag "noise" in comments. It's important to note: diamond moderators don't need to wait until flags arrive to fix problems, nor should they. Judging from your answer, you seem unclear on what comments and flags are for:
Flagging a comment: ...
- no longer needed - the comment is obsolete, chatty, or otherwise unnecessary
When shouldn't I comment? ...
- Answering a question or providing an alternate solution to an existing answer; instead, post an actual answer (or edit to expand an existing one);
Comments are referred to as "second-class citizens"; they exist as a support for questions and answers:
Comments are second class citizens on the Stack Exchange network, not designed to hold information for all eternity. They may get cleaned up at any time. Generally, truly important information should be incorporated into an answer anyway ...
I come from Islam.SE, where answering in comments is exploited to circumvent the usual peer-review:
I have seen many users use comments to post answers explicitly because they're trying to avoid downvotes ... this is usually a very good sign that the poster doesn't actually trust his own answer ...
And regarding the copy/paste issue, at Islam.SE we'd say...
We don't want to become a repository of quotes from elsewhere.
Both these apply here; in short, this is not normal behavior at Stack Exchange.
in this case all comments by @6065 have been deleted
Comment deletion is normal.
...any reply will be deleted as soon as unnamed superuser takes another look
This reply at meta (the appropriate outlet) has not been deleted.
If you have a problem with a diamond moderator action, it can be brought up with Stack Exchange (I believe the email address is
firstname.lastname@example.org). But in this instance, I'm certain Stack Exchange instructions will be the obvious: don't allow such misuse of comments. If Stack Exchange staff were aware of this, they may even delete the mess of comments themselves (like they did at Islam.SE).
It is true that moderator-superuser has suggested avoiding comments when answers are possible.
Listen to that advice. Answers go in the box labelled "Your Answer". It's simple.
in the case of user6065 unnamed superuser insists on deleting them
The comments flood the site!! They absolutely need deletion. Even non-flood non-copy/paste comments get deleted; it's normal.
Please note that for almost 4 years user has been allowed to write comments even though they could have been written as answers.
After almost 4 years, when comments were consistently allowed ...
If this is accurate, they were overlooked. (Didn't you look around and think "no-one else is answering questions using streams of comments?") In any case, these comment floods need cleaning up: comments are temporary, so if you want them to remain, I suggest writing answers like everyone else.
It seems submitting question to Meta was the only way to get comments readmitted at the Chinese site.
You're looking at this wrong: comments get deleted. If you want to save them, turn them into answers.
Users have endeavoured to answer questions without being rewarded by any increase in reputation.
You could simply ignore reputation. Otherwise, creating bounties is the usual way of getting rid of undesired reputation.