Hi, I created an "issue" report on this same topic a few months ago, yet can't find it anywhere here. Not sure where it went, or if I am overlooking it. Anyway, the problem persists in a BIG way. I had probably 10-20 spam signups today, and spent an hour or more deleting their accounts and banning all of their email addresses. This is an unsustainable amount of site maintenance that only recently became an issue. Are you sure there is nothing you can do about this? Or there isn't something you changed that is making it easier for spammers to slip in?
Second question: many of the emails for the signups have a similar start to the suffix (after the @; see screen shot below). Is there any way for me to ban all addresses starting the same way? For instance, could I write something like @polski-*.* to ban all addresses with suffixes starting with polski. Each time I ban one address, they seem to generate new ones, just with different extensions.