Personally, at this time, I see the solution to the problem only as holding separate "Only-OH" tournaments, while leaving the key tournaments (Favorites, OFB, etc.) as they are.
All those tournament accounts and such are complete nonsense. If a person is too stingy to spend 168 rubles just once to test OH, then there's no need to spoil them. As for the green Новичок who will come and be shocked — I also disagree. Novices mostly come from streams, and on streams OH is presented as a given, so the modern novice is already mentally prepared for OH, unlike some own hardened conservatives.
Overall, I still agree with the opinion that Sanin wrote at the beginning of the thread: