Not only are the bots registering but surprisingly they created around 500 subsites on my site.
For example if my site is http://www.mywebsite.com/
They created http://www.mywebsite.com/xyz1 , http://www.mywebsite.com/xyz2 etc
I just wasted more than 1 hour on deleting all these subsites and I wonder how did the bots manage to create them?
The bots have been registering like anything in the last one week and on top of this now this new problem has crept up.
Could the updation of any plugin have triggered this ? Or could it be that these are some new ingenious bots that have found ways to bypass recaptcha. But had this been the case, then by now all the sites using recaptcha would have been affected.
If I say I'm frustrated-that would really be an understatement. I seriously don't know what to do! Sorry for the rant...