If you want to connect privately with another member, you can. Click the My Stuff > My Inbox to view your inbox, compose a message or view sent messages.

You can also send a Private Message at any time when viewing another member’s profile:

Private messages are great for private interactions like exchanging contact information, reconnecting with old friends or exploring a paid engagement. Please do not ask your product questions, or answer others' product questions, over private messages. We want everyone to benefit from the conversations taking place, so ask and discuss product questions publicly in the forums.