[itsnotvalid]

I'd think it's not a requirement for OSS (look at textmate, sublime) but as new comers hit the store it would be nice to know it beforehand and have an expectation of what would come. Since for people writing addons it would be a decision-maker.

What most people wouldn't like to see are yearly subscriptions of another editor or paid upgrade every 18-month. I could personally bear with textmate and sublime for their current licensing (personal => works on as many computers I have - which I have at least 4)

For OSS ones, we have the traditional ones like emacs, vim, eclipse, and newer ones like brackets (which also sold as paid editor as Edge Code CC), lighttable or google's half-baked collide.