Is what you offer something like Bitrated, Bitcoin Trust - multi-signature smart contracts for buyer protection and fraud prevention for Bitcoin^[1]
I remember the service was popular in the past and you could link your account to the forum, Twitter account, additional data about you and they would give you a number, the higher your number the more trustworthy you are.
In general without giving guarantees that the service will be decentralized and the development team cannot enhance the value of accounts (especially paid ones) then it might be a good thing.

[1] https://bitcoinmagazine.com/business/bitrated-unveils-reputation-system-multisig-escrow-1424750534