I sent this to to the help group:
I noticed a new comment in one of my entries, clicked on it and saw
that it was from me.
Now, I don’t use the term ‘first’ to reply to any blogposts, so it’s
not like I accidentally did this. Since the blogger team email seems
like a well-known secret, I’m posting here. I’ve already changed my
password, but am curious how do I stop this from happening again and
what steps do I need to take to make sure none of my email was
affected by this?
And still no answer.