I have 2 level 50s, a Shadow tank and a Sentinel DD. I do more ops than FPs, and so far, I have only once experienced someone getting votekicked. It was somewhat understandable, and nevertheless severely indecent.
Oh, and it happened to myself
The Group Finder was rather new still, and I was drafted in as a replacement DD for someone who had lost his connection and was trying to rejoin them, although I did not know that. I was immediately voted out, leaving me stranded on Ilum, wasting my time first to get back to anywhere I could do something useful, and mostly by kicking me out of the GF queue.
Unsurprisingly, these people now are on my ignore list.
I can understand that they wanted to be decent to their missing member, but they transferred his misfortune - which was likely somewhat earned by his not planning for regular ISP-disconnects - to a random stranger, me, who had done nothing to deserve the waste of time.
That they saw themselves with no better way to help their member not lose his progress says something against the system, but it does not excuse them wasting my time and possibly that of any other DD in between me and their re-queued former group member.
I think the queue system might need a few tweaks in more than one place...