I started BOINCing in the early 2000s, I dont know when excactly I lost my original account & CPID, its well over 10 years ago though. Id just run my PC while I was at home on weekends, it didnt matter that I was only doing a little bit, it all counts.
I saw Bitcoin early and was intrested, but it was hard to understand and I didnt want to divert my crunching for some weird currency thingy.
Around mid 2014 I tried to setup Gridcoin Classic, but it was complicated and I could not get it to sync with the network. About six months later I had forgotten my original problems and was one of the early people to join Gridcoin Research, I had to buy Gridcoin Classic coins, and go through the coin burning process to get the new GRC.
A short while before that I had solar panels fitted on my house and so I started crunching BOINC in the daytime, but it was Gridcoin that really made me dedicate to crunching diligently and as much as possible. Even so, I have never had massive output on Gridcoin because Im only a part time BOINCer.
I love the science, and am dedicated to BOINCing forever, but Gridcoin gave me that extra little incentive to push a bit harder.