I work 3 jobs for 1 year, had 2 only for maybe 5. Most of your observations are correct but I can tell you that I do not have it that hard to synch the meetings to make them not overlap. And I make an conscious effort of being really prompt when answering queries. I am perhaps more prompt than many that do not do what I do, since eI would not like people to suspect what I am doing.

LinkedIn has proven a fucking pain indeed, and that is why I am not active on it anymore.