Ok, but this IS tpruvot's version thread...

Don't pools (that support this) allow this through the password field or something like that?

Sure, he's a scammer that paid for forked neoscrypt coin and got nothing back after people changed addresses of their negative amounts. I'd love if more scammers were such altruists. 

Well the owner of the zergpool is just a scammer he left the discord and git .

Context is important here: you are mining on a new pool being managed by a single guy who is making 0% fees. He is paying for the IT behind the pool from his own pocket and essentially offering you a free proxy to mine cooperatively. I would understand your point of view if this were an established large pool making piles of $ for it's owner, but that is just not the case. Pinpins is busting his ass to create his own custom pool for us and trying to cater to the new users as best he can. This includes adding low difficulty and new coins that are prone to "misbehaving".

In the case above, you were paid with BTC that you didn't actually earn and likely came out of his own pocket. He is using the available technology to predict, as best he can, what you will eventually get paid for mining a coin. Until those coins or exchanged BTC end up in the pool coffers it isn't real and, as we've seen over the last few weeks, there is a lot that can go wrong. Altcoins can be fickle beasts.

There are bound to be growing pains associated with new pools; if you are worried about wasted hashrates for a single day, stick to the giant established pools who will happily take 1-2% off the top of your earnings and won't be as flexible with pool structure. I prefer the small pool "feel" and ability to directly mine a coin directly or not via his custom "mc=" flag, which is rare.

I'm happily earning myself back out of the "BTC red" right now and will continue mining here because of the tireless effort Pinpins is putting in to try to make his site user-friendly (does this guy ever sleep?).