I recently gave this answer to a question. Initially, I gave a sloppy answer—the kernel was there, but I didn't set it up properly. Someone pointed this out, and after some time, I was able to improve the answer to my satisfaction (and, I believe, the commenter's).
After some more time, though, I came back to look at the question, and several of the comments were removed, including mine. Now, I can understand the rationale behind the removal, since they largely (though not entirely) referred to parts of the answer no longer present. There were some strident words, also—not from my perspective, but some could have taken them that way.
But they also removed some of the context behind comments that were left behind. And usually, in my experience, the deletion of comments is left to the discretion of the commenters. I don't believe my comments were harsh in any way; if anything, I believe they were conciliatory and admitted my error and my intention to correct it. Can anyone give some insight as to why my comment was deleted?