even if it was 15,20,25 it would have to allow 55,60,65 or more for the the thread creator (baker) to accomplish their work. the limits would slow the ovens, and is unproven to work really.
i would like to see an experiment that didnt force limits, but for all others than the creator (baker) have the post count correlate to an dimming effect of all the posts from that user, they would still be there, but become more and more transparent. the user could click in options to override, but quickly scrolling would almost MUTE those high count posts.
my .02
o7