A lot of it is determined by what you hope to get out of opening it up to players. Do you want beta/usability testing? Then maybe it's worth it, if you explicitly make it clear that it's a pre-alpha build. Let people opt in, rather than just broadcasting it wherever.
For what it's worth, I'd play this, with the understanding that it's pre-alpha.
VoxExMachina
Alexei joined
This member has provided no bio about themself...