I am far from it! I sell more on Ecommerce sites so they like a long description with suggestions. Seems that short and sweet works better on OfferUp. But I still like to throw in a bit of history or alternative use ideas in there! Good Pics are the first attention getter, I also find giving measurements and condition FIRST works too (since they rarely read beyond the first two lines) . I use OfferUp for local business to move furniture mostly. I have yet to ship anything.