REG is an acronym for Reactionary Exclusionist Gatekeeper. They believe in gatekeeping of the LGBT+ community.
REGs may be:
-aphobic, arguing that asexuals and aromantics are not inherently LGBT
-biphobic, arguing that
bi people must experience same-
gender attraction to be LGBT, or discounting
bi experiences altogether
-transphobic, arguing that the
T in "LGBT" be dropped or other such rhetoric
-transphobic, arguing that one must experience dysphoria to be
trans-transphobic, arguing against nonbinary existence/validity
-intersexist, arguing that intersex people do not have a place in the LGBT+ community
-and many more
See also Truscum,
TERF, SWERF