steem.ninja is great. But tell people who want to onboard they have to pay for it is difficult. They need to get rewarded for onboarding and not to pay for it.

If this changes i think a lot of tribes, other frontends and games will onboard a lot.

With the Keychain import you are right, with auto import and backup. So its super easy and save for the users.

I know from some Games a lot of people. There are currently on reddit. With Community and easy onboarding i see no problem to bring all these people to steem.

And then it leverage :)

If we have communitys for every Computer Game, this will go huge.

And the best thing is, if these Players write some guides, there get a reward from it. So they come automatically.