I've donated and I've also joined up their subscription for the year £40 to get access to social features and the ability to comment. I think it's a good move to have a paywall for comments as it will act as a natural filter to troll accounts that seem to bombard articles in an attempt to manipulate the perceptions of what is or isn't popular opinion.

I think increasingly we need to support these types of start ups as this is how the fightback will be won.