One thing in particular that I would like to highlight, is that we don't bulk message our members with requests to join, to buy, to hire.
I am a newbie to the platform as well, and I get that it can be very exciting to have all these new connections, but do yourself a solid. Make sure you go through the orientation that the different communities offer you.
Having an orientation for newcomers will be something that I hope to have up by the end of next week (setting a goal here).