I am quite sure that is NOT the reason your post failed to show. There are NO censors here pre-reading and blocking posts, and certainly no camera-brand preferential treatment. The moderators use a very light touch around here, and rely on us to police ourselves. They only step in when it is really necessary, and I have never seen them remove a post, even an offensive one. Maybe your ISP had a glitch or something at the same time you tried to post.
I was reminded privately by another member that offensive posts have been removed by the moderators. I had forgotten about that. The posts were excessively combative or insulting, and usually not related to the thread topic. The deletions are noted, and usually have a short explanation from the moderator.
Also, spam has been removed.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.