I thought about installing one in my round pen when I had it built but decided against it. I’d had a bad experience teaching a youngster to tie and was frankly scared to teach them. A snubbing post would have worked just fine (the horse that scared me would have injured himself had I not been there, but then again, he wouldn’t have had a chance to injure himself if I had done it properly in the first place). Anyway, the snubbing post should present less of a chance for a horse to injure himself. The accident I’m referring to did not involve a snubbing post, but it is why I thought of installing one. Sheesh, I can’t seem to say what I mean tonight.
I do have a tree I tie horses who arrive with no respect for tying. They get tied above wither height (actually, above head height) with an unbreakable lead that hangs about 6" off the ground when slack. So far, nobody has gotten hurt and seasoned halter-breakers have learned to tie for however long I want them to.
If your barn installs a “patience pole,” perhaps there should be a training session for those interested in using so they know how to tie a horse safely. A little bit of knowledge can prevent a whole lot of injury. Ask me how I know.