Currently /load writes the contents of whatever file is /loaded into wgaf.cfg. Is there any way to make it simply load the file and not save it into wgaf.cfg?

Ya improperly quit your client. Load only exicutes those commands, doesn't save anything. When you properly leave vendetta it over writes your wgaf file with your current aliases.

I have all my aliases in extra.cfg. I loaded vendetta and typed /load extra.cfg. When I quitted vendetta (normally, I might add), everything in extra.cfg was copied into wgaf.cfg. I find this annoying, because I'm trying to separate my crap out from the rest of it.

Agreed. That's a good idea. I've tried to make extra command sets in the past and run into this same problem. Fixing (or breaking) this program behavior would enable the distribution of binds in a file.

ya, rog. If you DON'T want your current alias/bind set saved quit improperly.

The aliases getting saved has nothing to do with the /load. When you load a file all the aliases are put into temp mem, and are not saved to your wgaf file until you quit. Which means it would be very difficult to implement your suggestion in a nice manner. But it's relatively easy for you to use the quick, dirty fix of just quiting improperly (cmd-q on macs does it, ctrl+alt+delete, or kill [-9] you probably don't need the -9...) that way vendetta won't get a chance to re-write your wgaf.