Thank you for your reply! In saying "be careful about wording negative feedback in a positive way", you ring a good bell with times I've made suggestions in a small task groups. I kind of always forget that when sending a message, any message, to a company, you're dealing with both - the company as well as the reader of the e-mail. (A person and a business in other words)
If it would help, the app that I have a feature suggestion for is the client for League of Legends, made by Riot Games.
Otherwise, I'll keep along the ideation I'm working on and come back for feedback when I am more prepared to present it to Riot Games.