As many have already posted, Airbnb did not clearly communicate leading up to their IPO. When a company is planning a once in a lifetime event for their company a single email sent to it's stakeholders, to be allowed to participate, hardly seems adequate. Add to that you needed to response within hours of receiving the invitation in order to participate. (Responding within 24 hours of the invitation was too late to participate). Then, if you were able to fill out the application, providing that the link was not broken and you were not using a mobil device that automatically routed you through to the Airbnb app and not the application, you received a cryptic response stating, " thank you for your interest in the program it is at capacity".
I recently read how one fortunate host was able to purchase 200 shares at $68 and then resold for $144 on the same day. A 15K profit. Imagine if the share amount was capped at 100 so that more hosts could have participated? Airbnb's executives could and should have been more forward thinking in this once in a lifetime event so that as many as possible could have participated.