After recently learning about LTC pools merge mining DOGE, I couldn't help but wonder ..
How easy would it be for a greedy (insert your coin here) pool operator to mine blocks on any blockchain of his/her choosing ? And not tell you.

Could this be how so many shitcoins are able to achieve such high hashrates at launch ?
This has the potential to become the biggest and longest running scam, dwarfing GOX and/or BFL.