This is a beef I have with this hobby.
This hobby is complex and requires a lot of science and research to understand properly. We really have never had that. If you take something like auto racing then think about how Mercedes and Ferrari spend millions on R&D to be the best at F1 and how that technology trickles down to the consumer market. This happens with every major automobile maker in every major country.
We need some large influx of research capital into the hobby to demystify some of this stuff. Because the downside is this leaves the hobby open to way to much BS. Having been away for almost ten years I was amazed that almost nothing has changed except the equipment.
If anything there is more BS to deal with now. I see people spam posting their rules and beliefs on how to fix issues or cycle a tank, with nothing to back up what they are saying except maybe some posts on here...
There is hope though. First, I think there will be more research funneled into the hobby as climate issues drive R&D globally. Second there is still good data out there you just have to hunt harder. Pay attention to stuff from guys like Randy Holmes-Farley; veteran's with a scientific background. Also look at the member tanks and how they are built and managed. You'll notice a lot of those guys have amazing tanks and long term success, but most of them don't post in the general section or debate people who try to push pseudo science.
Finally I'll say that based on my experience, this hobby is not for the timid. Most start, fail and will never be back. You need to have that drive to succeed and constantly adapt to the problems you encounter. You will encounter them. But as you do your ability and confidence will grow. Then its eventually just managing numbers, cal, mag, etc.