Yea...when someone is really new it's tough to explain the actual why at that stage. It's not necessarily a problem for people to do a 're-intro' post say 6 months or a year later..without really having it seen as a problem. ( I did a 1 year re-intro since most my new followers never saw my original...let them know me a bit better, where I started, what I learned, etc.)
But yea...the #introduceyourself #steem and #steemit tags are some of the most misused that could have easily gotten out of control if they weren't 'monitored' in some fashion.