Hello,
If you show me an image how it will be looks I'll look into and try to help.
Check my files https://invisionpower.com/profile/293560-newbie-lac/?do=content&type=downloads_file
Some has been updated from 3.X version. So I will provide support for as long as possible.
Where to hide? Posts, profile? Do you want to add new tab in Account setings "https://invisionpower.com/settings/" where user can hide rating bar?