No, watch this: http://www.youtube.com/watch?v=GwNgTnj9hBE
You can drink and eat alot more after the messages are gone, you can store alot of energy and go without water or food for a pretty long time.

Ye, they get stuck in a loop and play over and over again

Awesome? it's very inconsistent.

I consider this a feature and I would like it to stay, it's very useful.

It's a problem with the engine, I don't think they can fix this, maybe if Arma 4 ever happens, but I strongly doubt it.

I can hit people without too much trouble, you just need some practice

Task destination works if you synchronize it to the same trigger as the create task module, otherwise it sets the destination of a task that doesn't yet exist.