how the data tag became such a think, is a little bizarre to me since it was exposed metal and can easily be rusted or removed and lost.
Some folks are stupidly judgemental of vehicles that don't have a tag.
Only way to stop is to put a tag on.
The vin will tell you, "you've got a 1969 Hemi road runner built at X plant".
For many of us, that is really enough to start with and we can figure out the rest.
Elitist snobs aren't ever happy with just the VIN, they will lose their minds that you can't prove it was an original 4 speed car or whatever detail they choose,
because there is no tag.
To some extent, putting a car up for sale invites that activity. But I've seen it happen on display vehicles that were not for sale.
A repro tag puts a stop to most of that.