Also holding since 2016.
The amount was not significant at that time. I thought even if lose this who cares. Money got bigger and bigger. Forks happened and my btc number got bigger too (for free) And now that amount is as big as to make a difference. Not enough to retire me yet but still i feel good to have it around.
HODLing is maybe not the most profitable option you got but it is the safest indeed. I quit trading after gox thing and almost never ever had btc's on the exchanges since then. That was the main reason I stopped trading and dumped my coins. I started to collect in 2016 again and it paid off.
I now sadly wish that I haven't dumped my other coins for pennies but past is past. We are still in early phase and there isn't enough bitcoins for everybody!