Just thought some people might be interested in this. A few users on my site found some spam user accounts I checked my database and found many similar accounts. What's more, these same user accounts are on many other Q2A sites including this one!
None of the accounts have actually posted, but their user pages have a long blurb in the About section and are basically just spam advertisements on your site. The links are nofollow which prevent them getting "link juice" but it degrades your site and there's a chance it could impact SEO having spam on there.
Here is the list I have found:
They all seem to be from different IP addresses but all except the first 3 are in the range 122.169.* or 122.179.* I would also suggest running the following query on your database to see if there are any other duplicate accounts. I found a set of about 40 a few weeks ago, all from the same IP address!
select createip, loginip, writeip, group_concat(handle) AS handles, count(*) as accts from qa_users group by createip order by accts desc
Longer-term, I think Q2A needs to add some more spam-detection features in. As a first step, some way to approve user accounts, so that multiple accounts from the same IP get flagged, and we could add our own filters on user accounts (like "attorneyjob") to flag them for moderation.