The reason you don't want your real name and picture is that admissions committee members are on SDN. If you're immaculate you maybe don't have anything to worry about. If you're soliciting advice how to make a mountain out of your molehill of volunteering, or cracking snarky jokes, it might not go down too well. There is an old story about someone having an acceptance rescinded over social media.
Some DO schools might not required a letter. But many of those, like Rowan, say it's strongly recommended. They will ask "why DO?" So unless you are not living within 50 miles of a DO, have a parent who is a DO, etc. it may not fly.
I do not think there is any reason a pre-PT student should get flack for asking a pre-DO question. What's wrong with having a change of heart?