She probably had been taught to use a sewing machine, they use for pedals to operate

Should I ban them now to stop them wasting their and our time further to no useful effect at all? I think I shall since they couldn't have seen my warning anyway

I'm also curious as to how an instance banned person was able to comment on a post to a community in that instance? Could they have done so innocently?

I also can't see any of the comments from lemm.ee. I presume dubvee isn't federating any of this out as the user is banned