I prefer a stand that doesn't have anything forward of the seat, but as long as the rails don't get higher than the seat, I deal with them just fine. I almost always shoot from standing and by the time I bend to make the shot my limb clears the rails. If needed I will move out on the platform just a bit.
I do insist that my ladders have a fold up type seat and full platform so I can stand back against the tree.
Do you use or stand on the seat platform? I sit on it, but I'm not gonna stand on it. Yes, I wear a harness.