If you’re transitioning from the old site to here and changed to a new username but want people to connect the new you with the old you, consider using the Personal Text area of your profile or your signature to mention the old name. If, on the other hand, you DON’T want people to connect you, don’t say anything and start fresh. Grin.
If you,re confused about anything, check the FAQ board. I’ve tried to capture the basics in screen shots and text to help you adjust. For a limited time, you can see some moderator view screenshots, too — if you’ve ever wanted to peek behind the scenes, now’s your chance. Those particular FAQ shots won’t be there too much longer.