Now I see that he sold all of his NEMStakes and crashed a price. He must be really loosing it!

not bothered by it all.. No one else seemed to have any issue getting it working.. No harm just means better distribution..
It's not market manipulation or lose of mind.. He knows exactly what he is doing.
It is quite a bad karma to distribute a redemption software that does not work
AND place a deadline on it.
So no, it is NOT about flukes in a beta software, and no, it is NOT about a (relatively liberal) deadline.
As he wrote, it is that
COMBINATION of those negative factors that he found unacceptable, not any one of the two alone.
Anyone may or may not conclude that for themselves, but it is not really rational to deny that as a valid argument.
It may be a rational argument but it is being brought forward in an irrational manner.
Not to mention that it's only webstart that causes trouble. If he'd bother to download the standalone and execute a single batchfile he'd be fine.