Tenebrix was premined, also the developer abandoned it along with the community.

Litecoin developers are still very much active- they are about to update the code to include all improvements up to Bitcoin v0.8.x

All the ALTs that copied off of Litecoin at its current state will be running Bitcoin v0.6.3 code. I hope these pump and dump developers are savvy enough to upgrade their coins like Litecoin is doing, otherwise eventually they will be left behind and forgotten (most of them are headed this way anyways.)

Also... create a better community? Bitcoin/Litecoin has a huge community, good luck trying to surpass all their development and services, etc. They are already ahead and have a bigger community to develop sites/services/updates to stay ahead in well into the future. There are also many more people invested into Bitcoin/Litecoin than any other crypto currency, so more people have incentive to make things and start projects because it increases value.