[kragen]

Tech support is a skill in itself, but it's also a crucial feedback channel for learning how users use your software. Empathy with users is what lets you distinguish a good programming decision from a bad programming decision when it comes to the software. Distinguishing good programming decisions from bad ones is what programmers do all day.

It's possible for tech support to work out as a disruptive distraction, but it doesn't always have to be that way. And yes, there are programming things where being in the zone is crucial, but there are usually programming things where it isn't, too.