There can be issues with your earning methods as having a low cap for the entire campaign would only lead greedy people to create more. There should be rules as well. But in fact, if a project like this that would implement the same forum and earn system as the others, it would be hard for starters to gain popularity with content that is way unique amongst the others. I've seen and tried tons of forums that lets users earn and non of them lasted long than this forum. Why? because of having a hard time getting quality posters that wouldnt create tons of alt.
Yes, there must be rules on that, for example, the signature campaign, only certain level of members can participate. Those new members are not allow to join the campaign. Another example, for Telegram group campaign, only a Telegram group with Min 50k followers can participate. Same go for Twitter or other social media.
The platform is hosted in a secured hosting provider, for the early stage, it is only a shared hosting server, but i will try my best to secure the platform. When it have more sponsors, moderators and webmasters, i will migrate it to a cloud or VPS server. And i will add in more security feature like Recaptcha, two factor authentication Eg. Google Auth which using by many of the Exchange platform. My platform is not using any repository and there is no repository setup in the server right now. But to increase the security, i will add in feature like Withdraw Passcode so that it is more harder if someone hack your account and wants to withdraw your balance (except their hack your withdrawal Passcode too).