Lots of spammers on GitLab.com
There has been quite an influx of spammers lately and it is starting to affect the GitLab CE project. They have been posting a lot of issues on the repository and, based on @JobV 's analysis they are generating a lot of traffic.
They are mostly links to live football matches.
@ayufan suggested we add https://www.google.com/recaptcha/intro/index.html
Like @JobV suggested, it might be good to add it to the registration form, so we avoid bots.
@sytses what do you think?