Spam message in AskLibreOffice site

For two days, the site is attacked with spam messages. I have deleted many.
What can you do?

Hi Charlie,

For two days, the site is attacked with spam messages. I have deleted many.
What can you do?

I've alerted Evgeny last week (or the week before) about the attacks. He
is working on a moderation script, the difficulty is to find a pattern
in the Korean content. We now have the help of the Korean community so I
hope it will be solved soon.
I usually delete spam once a day, but since this morning, I'm taking
care of it every two hours and will continue until it's solved.
Sorry for the inconvenience.
Kind regards
Sophie