I try to focus heavily on customer service. I mean quite literally if I had no customers using Shopify RMA then all the work I put into would be a waste. Shopify RMA was not a commissioned project. I created it on my own time without any pay. So naturally I am going to defend it. The current support for Shopify RMA is what allows me to devote further time and effort into creating the next app that is the successor to Shopify RMA.
As for your e-mail. I searched every inbox I have and there is simply nothing there from you. I checked everything back to April 15th by hand.
Then for giggles I checked the spam folders on gmail.com (not my outlook inboxes) and sure enough I have an e-mail from April 19th from your exact same e-mail address and in fact it looks to be the same exact message.
I do not monitor spam because if a persons e-mail server is configured properly and sending signed emails with proper content Gmail shouldn't pop them as spam. April 19th you sent an unsigned email with no anti-spam measures such as domain keys, spf record etc. Gmail popped it as spam and I never saw it.
I really have no idea why Gmail let it pass today. There is still no spf record or domain keys etc.. but you did mark it as "Priority" and if Gmail let that through simply due to a priority flag then that could be a major flaw in Gmail's anti-spam because anyone can mark a message "Priority" lol...
So in reality I had never heard from you and had no idea who you are. I simply saw an email with questions then 20 mins later a public post was made. Combined events made it look like an impatient user who was being rude.
Welcome to the fun world of the internet and technology. It is awesome when it works but can create a huge headache when it doesn't.
I will work out the logistics on per product rules and see if I can implement it in the new application. It would be a useful feature to have.