So a 4% fee does not include DDOS mitigation?

A 500Gh pool with a 4% fee equals 20Gh of mining power for abcpool.co not to mention other donations.

At an average of $5 / BTC, that's around 16 coins a day for a total of $80. Over 30 days, that's $2400.

Seems like abcpool.co is making enough $$$ to mitigate the attack.

Why aren't you doing this for your loyal customers when you say you have the most reliable pool?

This is an obvious weak link in your reliability.