A gameplay FAQ posted on a forum is an incredibly poor substitute for ingame reporting tools and status updates, notes ingame on what's broken and what isn't, etc. I've participated in plenty of betas and a handful of alphas, this is not hard.
Heck, look at the collaborative nature of this thread - the fact that this isn't all put together in an official changelog is telling.
The issue isn't that the game is in alpha, the issue is that the information collection and aggregation processes appear poorly run, assuming the devs truly hope to make good use of their testers.