I understand, and hopefully my posts aren't coming off as condescending or negative. I'm just giving my perspective from being in the DI community for a few years with friends that have significantly worse buildup issues in other communities. If there was any one-single solution then there would be no debate. I'm glad that it's actually been a rational and not heated discussion.
I just get frustrated seeing people in the community parroting solutions or problems that they think are fact (not you, but others have). This whole thread has been dedicated to solving a problem that, if we're honest with ourselves, we don't even know the actual severity of. There's a huge difference between buildup every 20k miles versus 100k when most certified valve cleanings cost in the vicinity of $1500. Buildup is absolutely going to happen, but to what degree should be the first question.