I suppose it's how much you value the finish of your pen. I like to take care of things I enjoy using, even if they are not that expensive.
All my Sailors are mid priced, 14c nib, medium/small sized pens (1911S & Pro-Gear Slim). They are only writing tools.
Sailor uses a good quality PMMA resin for these pens (& for all their resin pens) & they have precise moulding process. There are only a few very,very faint mould marks on the sections & on the male threads.
By not posting, I try to preserve the surface of the barrel & not crack the cap. In addition, I have not posted since I was a small lad in shorts in Central Europe. We were using fountain pens by the third grade. If I remember correctly, my teachers frowned on the practice of posting the caps. So, with me, it has become a habit I don't even notice that I don't post.
That said, it is a personal choice to post or not. Many here on FPN do. Some collectors of exquisite high priced instruments want to protect their pens by keeping the cap off the barrel. Other folks, like ParamattaPaul, find pens better balanced with caps posted. There is no right answer.
Edited by tinta, 14 August 2020 - 23:42.
*Sailor 1911S, Black/gold, 14c. 0.8 mm. stub(JM) *1911S blue "Colours", 14c. H-B "M" BLS (PB)
*2 Sailor 1911-M Burgundy/gold pens: 14c. 0.6 mm. "round-nosed" CI (MM) & 1.1 mm. CI (JM)
*Sailor Pro-Gear Slim Spec. Ed. "Fire",14c. (factory) "H-B"
*2 Kaweco SPECIAL fountain pens: 14c."M" "B",-0.5 mm & 0.7 mm stubs (PB)
*Kaweco Stainless Steel Lilliput, 14c "B" -0.6 mm. stub (PB)
*Montblanc 254, 14c. "BB" (1.1 mm?) flügelfeder factory stub