Suggestions needed!

[Jian]

Well, this is serious. I need as many suggestions I can. So I can decisively make my decisions.

What if I change

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with a usersystem. But a normal user can only generate x amount of public and private keys. Users have to buy expansions in order to generate more. Is this a good idea? I'm looking into earning money as well.

Well, doing this meant needing more benefits on the site. I need suggestions on the site as well.