Most Helpful Girl
Most of the time nope. Sometimes yes, if I'm actually interested.1
Most Helpful Guy
I actually post my opinion first, and THEN read the opinions. Most of the time, anyways.
But sometimes I do open the question in a new tab, read the question, check out the answers and THEN post an opinion, but I'm more likely to do that on the desktop.
In fact, I did that on this one. I think I do that far less on phone, because opening new tabs is less convenient on phone. (Of course, I'm glad it doesn't open every page in a new tab like during that one update. That was broken.)1