As far as I understood , u lost coins when pool forked , actually that is not loss but part of ur mining cost . As I have suggested all pools to keep eye on forks and switch as soon as possible to main chain , and they are doing it , esp youpool , the official pool , revientios (dont remember correct spelling) . So u will hardly loose a hour or 2 of mining .
Now regarding fork , u (or any one ) can fork even bitcoin and if anyone keeps mining on the forked chain they are mining something else not the original coin . So u cant expect payment of original coin for the forked coins . And if suppose u didn't fork but u kept mining on different chain , its definitely not ur fault but that cost u will have to bear and u should count that in ur cost of mining .