I have small family site. In spite of using the SI CAPTCHA Anti-Spam with Aksimet anyway I have about 1-5 spam messages/per day. Spam come from different IPs. And I sure it is human captcha solver. In same time I would say that these plugins are good because real people try to send comments. In the other words these spammers messages will appear with other anti-spam plugins.
I think to use a social login plugin to resolve this problem.
Which disadvantages with using a social login plugin as antispam in comments?