Pool hoppers using bots to jump on new, small pools using a bot the instant they hit a block is cheating, plain and simple.  They take a huge % of the reward for an hour of being on the pool when others spend a full day or two to find the block.  I believe what the website says is.

POOL HOPPERS are unwelcome here. I'm talking about the people who jump on the instant we hit a block with 20GH for an hour or two just to take a big % of the reward from the miners who actually stay and work to find a block. These type of pool hoppers will be taxed and that eth spread to the other miners.

And since everyone with an amount over 0.1 were paid off 2 days ago, I don't see how you could be owed 2.5 eth?  That would mean you took 50% of the block reward.  We have an average of around 8GH, and as far as I know, no one has been running any hash power that would cause them to be able to make that kind of %..  Oh wait, the pool hoppers. 

If you don't like it, don't use our pool for you're pool hopping.  No one has been taxed yet, but if you continue to do it, you will be.  Or I can just ban you totally. 

So everyone beware!  Noobpool.com is a scam because they don't want pool hoppers cheating honest miners.