who invented these rules

The community for the sake of the platform and value of steem

There are bots in the Steem (Steemit), which means they are legal for the platform

They are legal as far as they don't drain the reward pool and don't put low quality posts in trending as that affects the whole platform if it's seen as a low quality one by new/external users.

those with 2USD and above no one hooks them.

I have seen many of these downvoted to cents

I'm not sure that your 5% beneficiary will be enough I'm afraid.

PS. Looking at your posts it does not look to me that you are abusing bid bots so you should be fine, I think.

Take care