This is a minor leak, but persistent. I live in a rennovated 1840 building that is now condos. The bathroom was for for 2 years, and has now been leaking for 2. I've had 3 plumbers come out and each have replaced the wax ring twice. I tell each of them that I don't think it is the ring, because we've replaced it so many times. No one can find a crack in the toilet. The floor is starting to sag, as old floors are likely to, but the new underlayment and tile appears solid. Also am seeing wet grout and water coming up around the tub now. Luckily I am on the first floor so stuff is more accessible and I'm not going to ruin someone's ceiling.