Originally Posted by DBelton
It was a really good guess, though
That was one of the places that I looked for it on my system.
Yeah, that was the first place I tried too. Made sense to me.
Just for clarification to those who stumble upon this post, the user-level plugins for Gedit are placed in ~/.local/share/gedit/plugins/ in Gnome3, however, there are some differences to the plugins themselves. So it appears as though Gedit2 plugins will not work without some modifications.