I'm sure there are lots like you that get this worthless document but if you think for one second this letter helps prevent abductions of children, your kidding yourself. I mean honestly, you had a letter that was signed months ago. Please. Does that not tell you it means nothing? If not, no worries. You can do what ever makes you feel better.
By all means, keep paying notaries. If they are like me, they will laugh at people behind their backs when they come asking for the same. I certainly don't allow my notary seal on these.