I dunno, but I figure there must be somebody. I’ve been here for just over a year now (after previously lurking some while researching prior to installing a lighting project), and many others have been around a lot longer, so it seems reasonable to expect that others have tinkered to a good extent.
I guess somebody’s gotta do it! 
I have a few bookmarks (and one of my Forum bookmarks is Five Good Bookmarks, which I need to read and probably contribute to at some point) that I refer to (less so over time as knowledge occasionally lodges itself in my 
). I think mostly for me it’s a matter of curiosity, wanting to know what’s possible and then taking the steps to learn how to do things or having a question or problem that I want to solve and then being stubborn enough to trial-and-error my way through it (which isn’t especially efficient, but I still learn as I go).
@discobot knows a few things, and I’ve actually found the tutorials pretty helpful for a lot of things. Poking around in Discourse Meta has been helpful for answering a few specific questions, but mostly it’s play and experimentation. Some things I’ve tried haven’t worked at all (and I understand why that would be the case), so then that just presents another problem to solve and another opportunity for learning.