This is perfect... and exactly what is needed. this should be DEFAULT with vbulletin.
I come from the old SEO school of site maintenance/design... so things like welcome headers on everypage is habit...and been a constant source of agony in vbulletin.
the conversion of lurking/inactive members with simple message nudges is simply beautiful.
a big CHEERS to you!!!
(now if there was only a file to download to install.

)
<<< /me is ready to click install