i saw it on their telegram channel, i think they will upload the videos on youtube soon, well, it will be interesting for lots of people, that's for sure.

I think the developers need to  hire an admin to manage telegram as most question are not answer over there. Many who knows about this company has testified how good there are but I think its has to proved it know what is doing by managing the telegram very well.  At telegram people communicates with each other easy than other channels. Good luck to this project.

looks like this project dont need to promote in social media and have no social media campaigns

Yes. Many investors first looking what is going in telegram group, if it active than it good sign!

Well I have not yet found video from United Traders conference. Just by chance I have met the link to their photo review of the event. It seemed to me it will be cool to share it with everybody!
https://onedrive.live.com/?authkey=%21ANb3roPEhyqrU4w&id=7080240681613F29%2150080&cid=7080240681613F29

Yes, it's sadly. In any case, after they become famous, they will have many followers in any social network.
When we see the video from the conference 

Good news for those, who is not yet ready to invest into this promising ICO over 70 Ethereum. In several days, on November, 30 you can buy fewer tokens of United Trades. However large investors still have 4 days to get 30% discount!

how much funds they are need to reach hard cap?

I agree. I think they should publish articles about project in magazines. So more people can hear about project.

then where should they do PR? in theaters and opera? or maybe in churches?? 
social media is good tool so why devs no need PR there?