"Same with custom identifiers, and most likely internal identifiers like $mid() $left() $right()."Nope. Identifiers (whether custom or internal) can handle consecutive spaces, only /commands have that limitation. A $fulltext identifier would still be of great use (you could insert $chr(2) pairs, for example, between two spaces and then use /echo etc)
By the way, it's a shame the old boards are gone, there was a LOT of stuff in there for people to search