To the point two, I'll find all possible leaks and fix it.
I'm not saying there are any leaks
. Just that the way you've wrote it makes it very, very easy to create a leak.To the point four, it is true that it has a limit and it was mentioned earlier. I couldn't find another API that suits it.
So if you know it's not really useful, why did you add it and advertise it as "Bot shield"?
Btw there's always http://nastyhosts.com/
(disclaimer: I'm still working for a company that runs nastyhosts)