I believe a nosepick is only a nosepick if you grab out. Otherwise, it's a nose pivot. That's just a personal belief.
no way, no handed nosepicks totally count and are sick! i saw julien do them on a waist high ledge at a demo in my town in like '89 and have loved them ever since. you're still picking your nose. i'd actually say it's the superior version.
i'd say bigspins showed up in '88, maybe '87. i really don't remember seeing fakie ones before '88, gimme some visual proof! flip ones i don't remember seeing until '89 or so. unless you count rodney mullen. he probably had done all this stuff by '87, but freestyle was seen as another world back then, before it merged with street.
firecrackers- yeah, i have heard them called that but i think of the firecracker as when you do it down a set of multiple stairs, not just off the curb. guess it's pretty much the same thing though. the other one discussed here, the middle of the board thing, seems very weird to me.
don't remember a name for that weird trick pj does, that's some better-left-forgotten shit from 1992. it's like f/s pressure flip that flips the wrong way. pressure varial i guess. yuck.
feeble rewind works for that trick sort of. real "rewind grinds" are fakie 5-0 to fakie on a ramp, as they look like a regular 5-0 but played in rewind. that's an old term though.
on the noseslide shove stuff, a noseslide shove-it would be where the board goes to fakie but your body goes back to forwards. you could say a noseslide to what he's talking about is a bigspin out, but that tricks been called noseslide 270 shove since it was invented. i won't argue that bigspin is "incorrect" but i've never actually heard it called that.
how about 1/2 flips? there are the half flip caspers that ed templeton used to rock, and the 1/2 flip back to regular (w/o the casper) like thiebaud does in speed freaks (we called those "tuna flips" at the time, don't know why, 1/2 flip is probably fine), the 1/2 flip casper version where you turn with it b/s 180 like chris hall does in 1281 i believe... all that crap. then we get into back foot flips, nollie front foot flips, shove-it late kickflips, all the weird 1992 stuff... endless.