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Anybody can contribute sure, but nobody is doing it as there's no incentive and nobody cares. 

You need a modern easy client to onboard new users and stakers again.  A team, a vision, a roadmap, exchange expansion etc. to get new money in.  Why would someone invest big in this coin? It's all outdated stuff, super risky coin to lose all your money in.

So to revive it you need to spend some money and pay people to get certain things done, combined with people wo do want to contribute for free.  You can't make an omelet without breaking eggs.

But maybe it's good where it is now, it's the old that couldn't compete and had to make place for the new.