Delete a Message
When posting a lot of pics, maybe better split posts by putting e.g. 5 or 10 pics per post at most, or else pages become huge and it is more difficult to quote a specific pic url if needed 
I always deliberately pack the pics in as few as possible postings, to avoid to have them on different pages.
I'm always extremely pissed, when an idiot wastes pages, because he clutters the threads full with a plenty of pointless postings (one pic, one posting, such bullshit), with the result, that much more interesting photos disappear on previous pages.
When I see that the next time, I think to slam the more interesting postings via quoting or copying on the actual page.