Wiegley has probably done more to make Emacs exciting again than anyone since the XEmacs fork.
(Which, hey, speaking of RMS driving off contributors...)
(Which, hey, speaking of RMS driving off contributors...)
Anyway, he hasn't done much in Emacs development for years now, I think. As a maintainer, his actual tenure was very brief.
Eli Zaretskii is the acting maintainer now.