~snip~
He grew from the experience and made something out of it. I like it for him as nothing anyone can say about that event that can hurt him any more. We should learn from him.
It's honestly hard for me to understand what you want to say - because how did the OP
"grow from the experience and make something out of it" if he only now found out that he financed some kind of scam 10 years ago? Honestly, I didn't learn anything from what I already knew from before, which is not to invest in anything that is too good to be true, or that smells like a scam.
OP wants to celebrate every year in the same way, but not pizza day, but “what did I spend those bitcoin on then?” 
~snip~ I have nothing against it, everyone can have their own little celebrations from time to time - or remember bad investments from the past. Not that I don't have some bad moments from my past, but I learned a long time ago that there's no point in crying over spilled milk while cows walk past me waiting for me to milk them (
not literally of course).
