Was told I was "ranked to match" at 3 programs. Contact was from 1 chair, 1 program director, 1 senior resident.
Experienced favorable communication with residents at 3 other programs: "would be a great fit", "hope you are ranking us highly", etc.
Definitely influenced my rank list. If a chair or PD takes the time out of their busy day to recruit me and express excitement about the possibility of me matching, that's a place I will be considering more strongly. With studies suggesting that as much as 35-40% of applicants change their rank list in response to post-interview contact, I'm surprised that all programs don't reach out.