Here's what I do with a big trip report. Write it up in Microsoft Word. Copy & paste it to a new post here piece by piece. You copy a chunk, click Post, copy another piece, wait several seconds, past it as a Reply and click Post Reply, and keep going till you get it all in. You'll probably have it done before anyone finishes the 1st section & has time to post a reply, so your trip report is continuous.
I believe there's also a limit on how many images you can pack into a single post.
My point is, you can post your whole report. You've just got to do it in consecutive sections.
Richard.