… the minimum time for request-to-sending-back of the posting form doesn't prevent spam postings in my forum. On the other hand I saw not a single spam entry here in the project forum since several days. I've no clue, what's going on and what's the difference between this and my forum.
Now I know the difference. In my forum the setting
save_spam was enabled and here it is disabled. I enabled the settings in this forum too and within a half hour I spotted the first spam entry. So the project forum got spam messages too but the script rejects them instantanly.
I changed the setting in my forum to the same value and hope not to see the mass of spam never again.
Trenne niemals Müll, denn er hat nur eine Silbe!