Hey! Welcome to the forum.
To be fair, you are quoting me from Jan, 2016, Crafty had only been out a little over a year, so there's a lot more water under the bridge at this point - but still stories are sparse about long Crafty life without user intervention. The best example we have is the pioneering work of
@Vambo1980. See;
http://fuckcombustion.com/threads/the-crafty-by-storz-bickel.15984/page-338#post-1066915
You can do a search of his previous posts to learn more. And btw, that's all in the Crafty thread.
By "rollover" do you mean it went to 000 hours after the 600 mark? Or did it go to 601 as expected? Either way, it sounds like you must've done something right in life! to be rewarded like this!
Also, see the work of
@Vambo1980 . I think one of his innovations was moving the battery's heat sensor a little away from the battery. Another was soldering connections to the board, eliminating the plugs (weak link in the circuit). But the piece you're linking to on reddit looks very informative.
There are a couple of very easy cleaning methods for Mighty/Crafty c/u's. We've been over this lots of times.
I will admit that the Grasshopper (my reference comparison) requires almost zero cleaning. I love the new Hopper performance front end (PFE), even less cleaning with this in place. But I don't find cleaning Mighty to be much trouble.