We strive for genuine growth and engagement with POSH, similar to Hive in general. Services such as hey wallet or cashrain will either bring bots that people set up to milk those tiny rewards with hundreds of accounts or users that will spam like /retweet anything for a fraction of a cent most of the time. We don't think that attention to tweets with Hive links through these methods looks good on Hive, we want them to get there on their own merit and users to grow their attention and reach through proper use of tags, tagging and a genuine follower base.
Either way, we realize that this can't always be helped by the sharer, someone can for instance cashrain your POSH'd tweet without you knowing, hence we can disable certain tweets from earning any POSH before we ban a user if they purposefully ignore our warnings and keep doing these things we don't like to see rewarded.
We should however come up with a solution where a user can purposefully be ignored by POSH without having to unlink their account for tweets they want to use promotion bots on etc which has a Hive link and tag in it.