DTT's purpose is being a payment option for renting a rig from DRKT's mining farm.
But developer has gone, I don't think that DRKT/DTT will have good future.

Also I still can't imagine a reason why Dev left us. Here's my last thought about it. In Dev's last posts he said that he is "leaving for the Germany" to check the mining farm. Looks legit because when hashes gone for the first time, Dev replied fast about "internet problems". Then hashes returned for the short time. Now what can we see on the DRKT multipool? Absolutely nothing (except my 600 GH/s this morning haha). Where are these 147 TH/s in action? Maybe Dev is still setting up a pool and testing software/hardware? Who knows. I hope he'll show up.
But I also think that mining farm was a fake. There was a video. I think this is just an old video of some mining farm. 147 TH/s? Maybe. But the voting decided to "mine with 11th/s 24/7 and burn 100% of coins mined". If honestly, I never saw 11 TH/s, only 5 or 7, so Dev could rent them on Nicehash.

I'll say honestly - I talked with Dev on a daily basis and I was his friend (I guess). He had great plans on DRKT and I'm shocked that these plans are abandoned now.
If you have any questions about DRKT, feel free to ask - I'll try to answer them depending on the knowledge I have.