i don't see any use for any other cryptocurrency other than bitcoin. the only thing that might be useful about altcoins is trading and only if you can gain profit from it, thats all
Thats true.
There is no reason for the existence of litcoin.
Equally people who use litecoin could see no reason for the existence of bitcoin, but hey live and let live. People who drive a Porsche may see no reason for the existence of Toyota.
Choice is a good thing.
I think many here have raised a valid point with there is more real world trust with litecoin as in there is no secret in who created it, might be a significant point when it comes to wider adoption.
Outside of straight up scams I don't see a reason to hate on other coins, and too much of this could possibly turn people off cryptos altogether.