I have a site up and running where I'm requiring users to register before being able to post comments. I've tested this and it's set up correctly, users are not given a comment box until they're logged in.
However, I have spam comments coming through, these are not being posted by members. How are these comments sliding through if I'm not allowing this?
As a safeguard I turned off trackbacks as I read elsewhere that there may be a bug which allows spammers to send through comments this way, but to no avail as I've received more spam since doing so.
This isn't about the spam per se (as I'll get Akismet running) but I'm wondering/concerned that there may be a larger issue if spammers can bypass these settings in WordPress 3.0.
Any solutions to this? Is this a bug?