dude, nobody thinks of moto x and bmx as being very similar, bmx is like a totally different thing, sure there are supermans and stuff like that, but you cant even spin on a dirtbike, or grind, plus moto x guys hit 100+ foot jumps like its nothing all the time.
and with skiing, what i meant was that we can only do one grind thats similar to rollerblading, just doing the rails, sure some people do 1 footers once and awhile, but nobody likes that mostly because it looks like shit, and because its trying to copy rollerblading, which nobody wants. and our grabs are totally different too, we have two boards while they have boots, we have like 20 different grabs and mabye 3 or 4 can be done on rollerblades.
you can find similarities with every sport, i did alot of rollerblading a couple years ago and i got pretty damn good too, i skate too, and i used to snowboard before i skiied. out of all those id say snowboarding is by far the most similar, the movements are similar, the feel is totally similar, both are on snow, both have edges, both flex.
and sure "HELLA" people associate skiing with rollerblading, but HELLA more people dont. seriously , how would seth skiing big lines, or pollard jibbing in the bc look similar? its totally different, everything about it is different, the only similarity is that they both are facing forward. the biggest similartiy is probably on rails, but still there is one grind or two if you count the gay 1 footers, that are the same, thats it.
and why do you have to get so angry? im sorry if i hurt your feelings, ill try not to.