You should learn and improve the original post based on the suggestions you've got, since many (especially newbies) will not have the patience to read all the answers.
I will edit my post when I have enough suggestions, and yes newbies will not read through all of the answers from the topic.
I will not say to remove them from the list - I will even add that I think that Binance too is offering such services - but you should:
* clearly state the risks of going on that path (the coins are in other businesses' pockets and some bitcoiners will avoid using those payment methods because sometimes KYC is required too there)
* add that for those with a bit of technical knowledge there's BTCPay Server as a better option, there they can control the money flow, they don't have to pay fees to third party and the bitcoins go directly to their pockets (OK, wallets); even more, since they don't have to pay fees to third party, they can offer those as discounts as you said at one of the points.
...just my 2 satoshi.
Your two satoshi's are well appreciated.
I have a shop that accepts Bitcoin as payment and at the same time giving 10% discount when they use Bitcoin as payment as my way of helping Bitcoin community and at the same time to grow my business since I have a profit margin of 40%. I don't care about what wallet they are using since I value there freedom to choice and I might scared them away if teach them the complex way. I leave them the freedom to explore and learn it for themselves.
Always prioritize customers, they can use anything they want to pay, no matter what wallet they use to pay or what payment processor they use to pay. Just a bit of discount on bitcoin payment will motivate them to pay with bitcoin. 10% discount is huge enough for customers to use bitcoin to pay the bill.