question about definition of box condition, 9c 8c?

[GoktimusPrime]

I agree with UltraMarginal. It's just subjective stuff that people made up.

Finally, how much do you tolerate a dented/sprinkled TF box?

As long as the toy is in good condition I no longer care about the box as I just chuck them out these days. Just don't have the space to keep the box.

[DarkHyren]

hi

I would like to hear your opinion on box conditions. I know 9c means good and almost perfect (though nothing is perfect), and what 8c, 7c means then?

BBTS has a guideline on their different "grades" with descriptions, maybe give that a look over:
https://www.bigbadtoystore.com/Help/PackageGrading
From their grades I'd say "Collector’s Grade" would be C9-8, "Standard Grade" would be C7-6, "Substandard Grade" would be C5-4 and "Damaged Grade" would be everything else.

I am keen to find out the "industry standard" of the TF box condition. I googled, didn't find anything.

I'd say if there's an industry standard it's by the AFA. You can find their grading levels here:
https://cgagrading.com/ToyGrader/grading_scales.aspx
That should also give you an idea, partner those two lists together and you should have your answers.

Finally, how much do you tolerate a dented/sprinkled TF box?

Several years ago I bought a TF from a Canadian seller. The toy was supposed to be MOSC and it was, until the seller folded it intentionally to fit into a smaller mailbox

Depends on if it's cheap or not. If the figure is 50% off because it's in damaged packing and it's something I want to open and play with then yes that's ok, but if I'm paying full price (or aftermarket prices) then I'm very meticulous. Especially if it's an expensive figure like a MP. I like to have things as close to factory condition, even if I intend on opening them.

I certainly wouldnt have tolerated getting that mosc figure you mention, the item should be sent in the condition it was advertised in, if the seller damages any part of it to save a few bucks on postage (without your permission) then they should be liable for sending a new one in the condition originally advertised.