many intermediate skiers still use a wedge. It may just be a slight wedge at the start of the turn, and almost be unnoticeable. It may not even happen every turn. They may even be a solidish sort of skier, but once you watch then take a dozen or so turns, you notice that very slight wedge at the start, or maybe when they turn to towards their weaker side. So, yes. an intermediate skier can have a wedge.
I hope I'm not intruding, but from the persective of a learning skier, I'm often guilty of doing exactly what you describe. Very subtle, however, I know its there! Personally, I think of this as my security initiation to the new turn. At transition, just kinda move that new outside ski out there a little and while ya at it, turn it just a wee bit (the ski is light at this time, very easy to move it around)...there's my wedge. After the ski is moved into proper position, start adding weight to the new outside ski. Lots of work for turn initiation..I have learned that it is far easier just to tip the inside ski first to little toe..the rest just seems to follow.
Enjoying along with learning from this thread...thanks