Curious as it seems the website has been down for maintainence for awhile...

Not sure but I always feel websites going extended "website maintainence" are never a good sign... 

Their last online activity seems to have been two years ago, when they announced some sort of blockchain-based font enterprise, which also don’t seem to have ever took flight.

I don't know what's going on with them, but I've received a few royalty payments from them in the last year, including one this month.