Since you were editing the specific users post, he have the right to approve your edit even though he doesn't have privileges to do so on other posts. This user doesn't have access to the Suggested Edit review queue https://sharepoint.stackexchange.com/review/suggested-edits/
You edited the post on April 24, and once it got approved you earned 2 reputation points. Now this post have been deleted and all reputations earned on that post will also be deleted. Note that this happens on deleted posts only, and not closed questions.
Add a comment stating that "This is not an answer bla bla bla..", preferable with a link to appropriate Help section (https://sharepoint.stackexchange.com/help/deleted-answers). Also flag it for moderator attention and we will take it from there.
It "should be" lower, based on this answer from Adam Lear.
However, looking into the matter, creating tag synonyms require 1250 rep and creating tags require 300 rep. So my guess is your looking at the wrong heading...
See Privileges page for more details.
From the Reputation & Moderation article in the Help Center, one can read the following:
You can earn a maximum of 200 reputation per day from any combination
of the activities below. Bounty awards, accepted answers, and
association bonuses are not subject to the daily reputation limit.
So yesterday you earned 243 points since you reached the 200 ...
I believe the way this used to work is that when one profile crossed the 200 rep threshold, all other connected profiles would get the 100 rep bonus, but the one that had 200 rep wouldn't - except that if you had already also earned 100 reputation on your connected profile on another site, then that other profile will have crossed the 200 rep threshold, ...