Here's some more data, for what it's worth.
Most importantly, I have had zero
spam registrations in the last two or three days. You might say my board wasn't targeted, but...
In the last 3-7 days, I did get 5-7 spammers who activated accounts, mostly from Chinese IP addresses (and several with 163.com E-mail addresses, which I have now banned), some of which posted (mostly pushing Louis Vuitton). I also had a similar number of inactive registrations. I changed my Q&A from a Yes/No answer to one a little more difficult (pick one word out of three) and, as noted, haven't had spam since.
I have seen a jump in visitors. Checking my error log showed several URLs like the following:
Code: Select all
[Fri Nov 16 16:28:48 2012] [error] [client 18.104.22.168] File does not exist: /home/pocketpc/public_html/discuss/index.php+++++++++++++++++++++++Result:+text+captcha+decoded+wrong;+chosen+nickname+"SesCrergy";+registered+(registering+only+mode+is+ON);+e-mail+address+or+server+is+banned;, referer: http://www.svpocketpc.com/discuss/index.php+++++++++++++++++++++++Result:+text+captcha+decoded+wrong;+chosen+nickname+%22SesCrergy%22;+registered+%28registering+only+mode+is+ON%29;+e-mail+address+or+server+is+banned;
Note the reference to "text captcha" in there.
The above was for my main board. My test board hasn't had any spam activity at all lately (although it has in the past).