I rarely do. I once wrote short little thing for a Flickr group competition and people there ended up liking it: https://www.flickr.com/groups/82512520@N00/discuss/72157716452607876/72157716790233112

I also sometimes write long captions if I do another version of a photo that got comments&questions: https://www.flickr.com/photos/138284229@N02/34647895731

Oh this question again? I have a canned reply to paste.

My most used lens is my Samyang 135/2.0 on m4/3 (samples). I use it straight, with a 1.4x converter and a .71x Speedbooster.