After Sirius get in one exchange I believe it will boost the popularity more.
What do you mean? It is already on Cryptopia:
https://www.cryptopia.co.nz/Exchange/?market=SIRX_BTC0 BTC trading volume in the last 24 hours, less than half launch price, last activity in Github 18 days ago:
https://github.com/siriuscore/siriusand this was only changing 6 lines of code to add some addresses. Previous commit was 6 months ago.
The project is dead. They got their BTC for listing it on Cryptopia, keeping the rest, then dumping most of their coins, and now they are laughing their ass off when someone here writes that they will still do something, while chilling at a south sea beach.
But is that worth it? I mean how many BTC would they have had left? If they went this far might as well continue working on the project since that could be more profitable.
Also if that was really the plan, then it would make more sense for them to have appeared more often on this thread to continue pumping the price. Instead they've been pretty quiet since January really. Scammers would had been more during those times.