Actually my campaign promise was to keep moderating how I have been, which hasn't changed. Sometimes there are a cluster of events where I intervene, sometimes a week or two goes by without using a mod hammer like that once (although there are still plenty of other flags to handle on those weeks).
In the case of those questions they were clearly in need of further refinement before they were ready to answer. (In fact I'm struggling to understand why #3 can have reopen votes when so far as I can see it is still completely unclear).
Since these were very clear cut I put in comments saying what needed to be improved and mod hammered them closed rather than waiting for them to have more close votes before doing it (I think two already had close votes). This is something I've done many times before and no doubt will do many times in the future. In general the less contentious a close vote is and the more likely I think it is for people to try and answer before it is closed then the more likely I am to mod hammer it.
There are generally 3 reasons why I delete a comment:
- I've migrated the discussion to chat.
- The comment is offensive/rude/inappropriate or off topic
- The comment is obsolete.
Most of the time a comment comes to my attention when it's been flagged either automatically or manually. Sometimes I see them as I'm browsing the site, I don't remember which was the case here but it most likely was me deleted the comment as I have deleted quite a few this week.
In this case you had asked for clarification in the question, the question had been clarified. The comment was now obsolete. Note also that there are two other currently unanswered questions in the comments (although there may have only been one when the deletion happened). By removing other comments that the answer had been improved upon it stops obsolete discussions from drawing attention away from questions that have not yet been answered.
Comments are not intended to be permanent additions or decorations to the site, and once their purpose is served they are eligible to be deleted. Permanent records is what questions and answers are both for.
It's the same logic as was used when I deleted my own comments from your answer about magic genes at the same time as I upvoted the answer. The comments were now obsolete so leaving them does not add anything to the site and does distract from other things that may still be relevant.
We're not going to go on some vast crusade to sweep out comments from every nook and cranny of worldbuilding, but equally if we see something that could use a bit of tidying we might get out the dustpan and brush.
In the past month I've deleted 179 comments.
In the past week I've deleted 31 comments.
That's actually a reduction in average deletions per day, although my all time monthly average is lower than 179 so it seems there was an increase earlier this month.
This month so far I've closed 8 posts.
This week I've closed 5 posts.
That is an increase but the numbers are so small it's easy for clusters to form.
I was a little hasty in deleting that specific comment and apologize for that. However it was done in the context of deleting many other equally obsolete comments that just didn't happen to be quite so recent and I am willing to stand by the action. Obsolete is obsolete. It doesn't matter how long it's been obsolete for. You asked a question, it was answered in an edit that directly addressed it and covered the main points (two directly, the third by inference). At that point your comment was obsolete and eligible for deletion.