No It's no good at all and I wonder why exchanges accepts all those dump coins, they will never be anything like bitcoin. I'm Ok with Litecoin and Bitcoin but only 2 and not 1000's alts which are just for pumping money from other ..
Exchanges typically have nothing to lose other than database management by hosting all kinds of alt-trash. Since they take a 0.2% cut typically it's free passive money for them as long as the wallet is secure. They can dump the alt-trash coins whenever they want for BTC in their own trading systems. Some exchanges promote every single coin possible, some just stick to the older ones.
Exactly.
Developers create those coins for profits, and they don't care if others will lose in the pump and dump.
Exchanges list those coins for profits, and they don't care if others will lose in the pump and dump.