>I expect that there will be no prohibition for a Hotline user who gets a good answer publishing the answer s/he got in a UT thread. Is that a good assumption (as this certainly happens when someone gets a good answer from MS support)?

I expect the medium will be the message, as your countryman McLuhan said. I.e. the method of communication will largely determine the nature of the content.

The difference I (yet have to wait to) see would be that problems posted here usually gets stripped from all the nasty details; we're sparing each other's time by posting bare bones of a problem, speaking in general terms, getting as close to the point as we can. And then wait for an answer.

Hotline, OTOH, assumes full bidirectional synchronous communication - chat window or a phone call - where these details would make the content very different from a thread of messages. The very fact that we're alone while we write a message here makes it different from direct communication, in the presence of the other. One tends to be complete, the other tends to be fast.

I assume it would be up to the paying user to share or not share the content. Probably the good solution would appear here, only later. But then - not necessarily, because the problem may not be so good, the user may not be able to write it eloquently enough, language may be a problem etc. There may be any number of reasons why someone would rather go for hotline than into a thread.