I think it'll greatly help recruiting by limiting the number of decommitments by kids shopping around after they committed while you think you have them in the bag. There's nothing worse then when you have 1 prospect commit, back off of a 2nd prospect, watch another school pick him up, and then have your 1st prospect decomit. Now you're scrambling try to find a replacement. It's especially bad when the 2nd prospect is the one you wanted.
I'm pretty confident that happened to us with QBs. We were recruiting Deuce Wallace and Joshua Jackson. Wallace committed but didn't sound too convincing. We stopped recruiting Jackson (which to my untrained eye was the first choice). Wallace decommitted and we returned to Jackson. It appear like it was too little too late and Joshua Jackson went to Virginia Tech. We quickly got a commitment from Aidan Smith. While many on the board think Smith is the best of the 3, Smith was definitely the last QB from that group to get a scholarship offer. I believe, as does the moderator, that if Wallace didn't commit, we would've had Jackson. I also believe, don't know about the moderator, that Wallace just committed to hold his spot in case Jackson jumped on board.
If a recruit is playing games like that and is looking around, then I think it helps your recruiting to get rid of him as quickly as possible and recruit your other guys.