I think this needs to be tested with/without rating boost and maximum boost in QA. It needs to be built, then tested with a testing group with actual rewards, who are all trying to exploit it.
I agree with you that rating risk/reward makes sense, and there's not much room for exploitation in that regard if we remove win streak bonus when boosting.
I want this feature so badly that I don't mind working for SPL for free, so we get there faster lol. Not sure if they have the resources to train and onboard a amateur programmer though. Totally understand the resource limitations though.
Thank you for taking the time to check out the idea. When you say things that have to be figured out, which aspects are you thinking of?