Maybe if someone drops out, or otherwise next time.

Well, the game is FCFS. I sent PMs to everyone who applied on the thread to give them a head start, but the password is public. There will also be a second game as soon as enough people express interest (I think 3 so far).

but I think playdiplomacy.com is a much better platform than webdiplomacy.net

Honestly, I chose webdiplomacy.net as I'm a regular there. I know it works, and the illegal orders protection is not that much of a bad thing really. The community is irrelevant in a private game, and I know I can easily get a hold of the mods if the need arises (e.g. if an unexpected pause is required)

Demanding a 90% reliability is WAY too low.

It is low, but not that low, because you are forgetting the 95% heads up. So, the player will miss every deadline with 0.1 * 0.05 == 0.005 (0.5%), which is okay. I think the 90% requirement is okay, but the 95% one should have been higher (and was originally)