Why is it 'international? Should we celebrate those languages where the third person singular doesn't make a distinction between male and female? (Wonder how enbies stand out in those places.)
Neopronouns are the most fun, by the way; to have the right to control the speech of others even when you are not in the room, and to force them to remember cumbersome words nobody else might use or to be deemed a bigot. A fantastic opening for passive aggressive behaviour should someone wish to use it that way. Which obviously would be wrong.
What is dangerous about all this, of course, is that it is yet another way of forcing everyone to worship at the church of gender identity, because it turns our own pronouns into gender identity signals, and as far as I can tell, the feminine gender identity is going to end up being defined with very sexist stereotypes about women which we are now expected to accept as valid for ourselves if we give our pronouns as sheher.