I think it is more of a case of they are just wrong.Some may stretch the truth but most is just a case of quessing and getting it wrong or we think it it smaller than it actually is.
I posted a deer a few weeks ago that scored 187 6/8.NET
The closest anyone quessed was 185 gross.
You can see just because you think it isn't that big,doesn't mean it isn't.
In the article for Kentucky Game & Fish it clearly shows the deergrossed 195 3/8 and netted 187 6/8.
This would probably be one of those that most would say I was overinflating if I didn't have the article.

Heck,I was getting guesses around 160.