I'd like to mimick the functionality from websites such as these: https://yes.no/alvin-e-roth or wiselike.com and I am fairly certain this is doable with Drupal -like most things.

I've been away from Drupal for a few years, so I am curious if D8 is the way to go or D7? Some of the modules I checked around Voting for instance weren't even stable for D7 :(

Most importantly, unlike the above websites, if I were to host live AMAs a la Reddit, would Drupal perform well or should I start with something else altogether?

As you might've figured out I am not a coder but more a hacker. I will put in the time if I can build a proof of concept with Drupal, but perhaps I should seek a developer to build this on Ruby? or else?

Thanks for bearing with me!