I really need to start paying better attention. I totally missed this
thread until now. That was one heck of a sale. No one to blame besides myself.
I take the same approach.
A quick email to the vendor after the placing the order can sometimes help rectify the oversight
(whether a discount on the same order or some sort of rebate/discount on the next) but not always.
It is truly not the vendor's responsibility to ensure we read all the
threads and keep abreast of ongoing sales.
Ultimately, we are responsible for doing our own due diligence,
as we are presumed to be adults once we turn 18
(which was just last year for me...HA! yeah, right....

)