I think it would be interesting if each member's profile included their model train interests by category.
Operating or Collecting.
O gauge, On3, S gauge, G gauge etc.
3 rail or 2 rail or both.
High Rail or Scale track.
Traditional or Scale size or both.
High Rail or Scale wheels or both.
Conventional or Command Control operating or both.
TMCC or Legacy or LC/LC+ or DCS or DCC or wireless radio.
AC power or DC power or Battery (on board)