Funny, I was thinking, "how do some of these folks post up pics so they show up as a thumbnail" . . . . On my end, when I want to post a pic, I go to where I have my pics up loaded copy a direct link and paste it into the dialogue box that pops up when I click the "insert picture" icon. Alternatively, right click the picture, click the "properties", copy the URL and paste it like

I think when I do it that way it won't blow up . . .. and so I'm partly copying that pic to find out if it will.
Love the Izhmash Saiga line, one of these days I'll get around to adding a couple more.
*Yup if I do the right clicky thing the photo won't expand.