exactly moaning won't help, they won't be able to fix their site now. They might take it into account for the next time they do a hunt.
It still is unfortunate though, we were in 4th place before we started having trouble with the site. We managed to find the last few puzzles a lot faster than the first few, but were unable to enter the answer from the moment we knew it.
Moaning won't change this, I'm just surprised that a big corporation like this, who has done hunts before isn't able to filter out the bugs on a simple website before they started the hunt.