Personal message responses should not have a minimum length

[aliceryhl]

Okay thanks, I’ll ask the people who manage the site in question.

@awesomerobot

Sometimes people find short messages like “Thanks!” annoying (did this need to be a message at all? maybe the like button is enough!), so the default is to require someone to put a little effort into their message before sending it to someone.

This is also why I specified responses only. I think the minimum length is very reasonable for the first message in a PM thread.