okay, now you are just picking on me.... just kidd'n : )why do you think this requires you to even know about it, much less have to do something about it?
My site runs on a cloud server and over the past couple months it has run into problems with resource overload. Having a botnet such as 360spider that sends multiple computers is a good example. Fortunately, my host was able to make some allocation changes and it's running well now. But as a result of the problems I did have to spend a bunch of time dealing with the problem.
I am using a QA that is working for bots, but humans are another issue. My test blocking is a broader geographic range than I would like but may help with some of these problems. Because humans will always be able to get through, I now use QA plus Admin allow for the registration, this uses up time.
Why also would I freely allow email scrapers to run all over the forum if I don't need too? Protect the users.
I'm sure there are other issues that I am leaving out.
Why not?why do you think this requires you to even know about it