Tarty dont re-thread frames and if you look at the description of bottm bracket tapping its is only cleaning the threads out so the bottom bracket goes in super smooth when going in , threadless bb *** , or get it tapped out bigger and have a insert put it to take the bottom bracket
I ride in my school all the time its mint , but the caretaker always comes out and tells us to go soo we do and come back later lol. only because theres like 4 caretakers who live on the school