Yeah, this. Especially for something like regexes where a large amount of your users will be more technical, and facebook is becoming less and less popular amon

Yeah, this. Especially for something like regexes where a large amount of your users will be more technical, and facebook is becoming less and less popular among technical people. Personally, I don't have a facebook account and I will not create one just so I can log in on your website. The disability to save my progress also made me give up on trying to progress since it'd just be lost anyway.