Agreed. If you haven't had any symptoms in 3 months then you shouldn't worry about disclosing to new partners and you should enjoy your sex life.
The strains of HPV that cause genital warts (6 and 11) are very common and you are likely not the first person they will have slept with that has had a case in the past.
The odds of infecting someone after 3 years is a low percentage. People are not telling future partners because it is assumed that if anyone has been sexually active (more than 3 partners in their entire life), then they have been exposed to it. Even if they only had safe sex. So if your new partner knows th facts about HPV, he will shrug this off as something that he already has. I've been dating middle aged women and I have yet to meet one that did not have a bad pap result at one point in their lives. As for years/decades after a wart is removed, no one can predict anything except that the odds of being infectious again is very very low. But it could happen. Since men cannot be tested, if any sexually active man says he is clean, they are either ignorant of the facts or misleading themselves. Don't let go of a future partner because of one wart 3 years ago. If he has been sexually active, he has it too and he cannot prove he doesn't have it.