I have been around Stack Exchange for a while now and have a decent amount of reputation on some network sites (not crazy much but still a bit). But whenever I sign up for a new network site and thus start up with 101 rep, people feel the need to add a comment welcoming me to the site and often also post a link to the site or network rules.
For an actual new user that seems like a good policy (be nice to them, show them the rules before they do something wrong) but for an old user with a new site account this is somewhere between annoying and a waste of time. Also it is basically comment spam.
So I think it would be good to add network reputation to the user info card so that people reading the post know that they are dealing with an user that might be new to this site but that is experienced with Stack Exchange in general.
Also I think that the "new contributor" tag is not quite fitting for an experienced user.