Litecoin is, like any other alternate cryptocurrency, just a scheme to steal the BTC from clueless newbies.
Just ignore it and eventully it will die out, like others before it died already.
Namecoin was the first fork and still hasn't died.
I suggest you take your own advice and think outside the box (rather than with your wallet.dat) before dismissing all alt. currencies as scams.
But namecoin is not a bitcoin clone.
It can be used as a dns alternative.
No point on reasoning with scammers... They all will try to push their agendas and scam you out of your Bitcoin with their scamcoins.
@JohnDoe I don't see Namecoin an as alternative cryptocurrency, but as another type of thing. Sure, it can be traded, but it uses the Bitcoin protocol for a something that has nothing to do with currency, so your point is invalid.