Over in another forum, someone posted frustration with getting very old DOT stock from Tire Rack.

6 months ago he got 4 new tires that were made 5yrs prior to then.

Recently he got 3 tires from 2015 and 1 from 2012 on a different order! The 2012 is illegal to sell its so old.

I sometimes check the DOT dates on my tires from various retailers and oldest I ever got was maybe 2yrs old. I know TR sometimes posts reduced tires that are 3-4yrs old and says explicitly on the page.

Would be interesting to hear from TR on if this is a known issue and are they trying to address it.