What's the actual reason for BitBet to steal the coins in this situation ? "You're screwed", as it is written in the FAQ, is not a proper answer.
Explaining to users quite amply and repeatedly that going against sense and acting in a particularly risky manner is not wise and will not result in refunds, and acting accordingly, has nothing in common with stealing.
Moreover:
If you want to use the service you'll have to read and understand. Operators that bend the rules to fix your mistakes for you can't meanwhile be publicly traded and held. The policy's not going away, but you can certainly prevent yourself from making totally unnecessary mistakes.
Transaction fee present or not, the rule is unjust because it keeps customers' bitcoin for no good reason. The fact that my failure to include a transaction fee has to be 'remedied' (your word choice is an unfair use of rhetoric - are you connected to Bitbet in any way?) is only due to
Bitbet's unfair policy. Furthermore, the blame for the lack of transaction fee on my transfer resides solely with Bets of Bitcoin (who have yet to respond to my email saying as much, btw).
Your so-called 'earnest' hope that I 'adjust' smacks of still more self-righteous condescension.
Sigh. I understand that it's hard not to take it personally when you've lost BTC, but no, seriously, if you're into BTC I think it'd be great if you spent the time and the energy (this isn't "condescension", again; it takes a lot of time and energy, far more than most people are used to expending, to wisely and correctly handle Bitcoin, especially with a zillion "services" out there run by the unskilled who won't tell people what they've done wrong, and instead try to band-aid over things with "being nice" until they inevitably fail and take everyone's coins with them) to get up to speed.
I'm "connected" to BitBet inasmuch as I represent MPEx here on the forums, and the owner co-owns BitBet itself. I see that you already talked to actual mods on IRC.