you can also always give them a shout out on the “who offers if and how much” section if there’s a thread that pertains to a product a vendor you can vouch for carries. Most prefer you leave feedback on there actual pages which you have to donate to do. Honestly I would not worry about it too much, at the end of the day they are all businesses and the main thing they’re concerned about is money, I get wanting to leave a good review for someone that helped you but It’s also incredibly incriminating. The less people say on here the better imo.