While it's true that cars likely passed you in order to get in front of you at the light while you were still moving, but I can accept that because I am a slower moving vehicle. When we are all stopped I take the entire lane behind cars waiting to turn, essentially telling the drivers behind me that this is my space; do not try to pull up beside me. That has happened a few times when I've left a bit too much space on the left, and I get quite annoyed. So now I just stop right in the middle of the lane. As soon as I've safely made the turn I drop off to the right again.

I'm sure what you do is fine too, but I if I am driver and I see a bike pulling up beside me, even though there's not a whole lot of room I might get a bit annoyed by it.