Of course they do, they all offer a unique community. No 2 coins are distributed the same.
Next silly question in 3.....2.....1....
bump THIS ^
There is still alot of junk, also the mingling of ICO non-coins (assets class).
If crypto is going to be 'decentralized' then there need be 100s if not 1000s of independent block chains.
The BTC-maxi-pads can huff and puff but the ALTs are here to stay, and there will be more.
The issue is shit that pumps for 3 weeks then fades to black. Slowly that is being mopped out. There are dozens of fair enough launch and release projects that any solid 'community' can maintain and keep online.
It takes active participation. If you are just looking to passively throw money at a project then stay in the top20 and good luck!