The codes I'm seeing are much the same as ever, and, with their grey background, are easily readable 95% of the time.
However, this recent post:
http://nabble-support.1.n2.nabble.com/Code-is-hardest-to-read-I-ever-saw-tp7280056p7280183.htmlshows an image that I would regard as unacceptable. Is yours as bad as that, or is that not a true representation of the kind of captcha you see?
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.