Very first reason, I have invested a lot in DeepOnion. Not saying I have lost huge amount. Well the investment was a part of my gain from both DeepOnion airdrop and my investment at the beginning. I was able to sell around ATH with a significant profit however, I had invested again later.
I do a lot of promotional stuff for DeepOnion which I think a lot of people don't do. For example, whenever I get chance to talk about Deepvault, I don't miss the chance. You can check the thread related to blockchain notary, I'm sure you will find me almost all of the recent threads.
I tried to get DeepOnion as one f the payment system in couple of businesses but you know that's not possible and I was failed.
I don't participate in the activities organized by the DEV team because in my eyes, they will not bring any good for the project. If there are something I think will affect DeepOniom, I try my best to particpate in the event.