> I introduced a credibility system for every user, similar to Reddit's karma so people can see how trustworthy the user is
But theres a problem with that: people create an account, build up their reputation for a while posting credible reviews then when they're large enough and have a good rep/trust, start taking money for their reviews.
A similar thing happens on Reddit -- people build up an account to have lots of karma (sometimes they're literally just bot accounts reposting tons of posts), build it up for a few months, then sell the whole account off for money after the account has 100s of thousands of upvotes/karma.
But theres a problem with that: people create an account, build up their reputation for a while posting credible reviews then when they're large enough and have a good rep/trust, start taking money for their reviews.
A similar thing happens on Reddit -- people build up an account to have lots of karma (sometimes they're literally just bot accounts reposting tons of posts), build it up for a few months, then sell the whole account off for money after the account has 100s of thousands of upvotes/karma.