There’s already a community over at !ergomechkeyboards@lemmy.world . It’s run by one of the admins from the subreddit. Not sure if there are any plans to move since Beehaw defederated from LemmyWorld, but it’s fairly active over there right now - come join us!

Height varies a lot between different profiles - check out the comparison on this page (some of those are for low profile switches but G20 and up are for standard MX switches): https://fantechworld.com/keycap-profiles-differences/ Additionally some profiles such as DSA, XDA, and KAM are uniform, meaning every row is the same shape (except for homing keys). Others are sculpted, meaning the height and angle varies between rows.