disagree, i think it can be helpful to network at a top prelim (BI, BWH, etc.) -- Everything matters, but I doubt your fellowship application will be made or broken by your TY or Prelim

<Your prelim year does not matter at all. like at all.

that's what I needed to hear.

if you do something that's not a good fit for you and you burn out, or don't like the people you're with, you won't go into derm refreshed/happy and that can hurt, so basically prelim year matters TO YOU and do what YOU want, but yes to other people externally it doens't matter one bit