What is to stop non-Bitcoin100 members from voting?
None! I personally feel that non supporters of
Bitcoin100 have a vital roll in this issue, for what results out of there directly, and indirectly, effects Bitcoin as a whole.
What is to stop non-Bitcoin100 members from voting?
nothing. They can vote if they want. Maybe they will join the bitcoin100 after voting?
Exactly! Moreover, not a single Bitcoiner shall ever called out is choosing to not supporting
Bitcoin100.
First point is valid.