Personally I hate floating t/ts just because they make me nervous - all that bouncing around. I prefer mass and damping to achieve the same thing, purely from a stylus safety perspective - nothing to do with SQ
Exactly, and that's what many direct drive turntables used to do. They were microphonic as a result of the lack of suspension and suffered from acoustic feedback if the speakers were close by as a result of that. Even if there was no actual howl round the sound would be impaired as a result.