Only post small size photos to group discussion threads to keep the download time on a thread faster.
How to post a SMALL picture to the group discussion thread:
Go to the page of the photo that you want to add to the discussion thread. Copy the URL (the whole thing). Go to the thread that you want to post in. In the comment box, copy the URL that you have pasted, and surround it with square brackets [ ]. This will automatically paste the Small sized photo into the thread.
