You did the hardest part mate...sharing the words and bringing a lot of new users on the platform. As you said, now we need to make these people stay for the long run and they need to be motivated!
I really hope someone, whales or dolphins come and delegate happily some SP to you. We do have a lot of users having a lot of SP on sleeping mode, better put these into good use!
Same like your roadshow finally got the attention, I am sure the sp delegation will happen soon mate!