Hee hee... My favorite subject.... 
A few thoughts--guidelines, more than rules, I might add. Common sense and common courtesy should be applied at all times.
My pet peeves:
1) Conversation trumps picture posting, please! Especially when someone new shows up in the thread and introduces him/herself, or a question is being asked--we need to take care of that first. I've seen so many instances where a question and an answer were separated by dozens of pics. Very frustrating for the conversing parties and not very polite.
2) Size matters. I've noticed that smaller pictures load faster than very large ones (I like the 500x 350 pixels or smaller), particularly when many people try to post at the same time--the thread locks and peeps are getting bounced. Happened to many of us recently. We can't control our enthusiastic guests, especially the Reonauts
, but we can police ourselves; when there are a lot of visitors attending the turning, we, the regulars, might as well refrain from posting pictures, methinks.
3) A few words added to a picture post make the post personal--it doesn't have to be a novel; "I like the blue one," or "This one is so pretty," or "I thought you might like this one--it's unusual." Whatever. I don't care for walls and walls of pictures just lifted from Google images.... And we get so many repeats because we all go to the same source.
4) When posting in the welcome thread, we should check what the others have already posted--I've seen the same pictures used by different greeters. We should try not to repeat pictures, if at all possible. I know that sometimes pictures don't show, so it's impossible to always know for sure.
5) I'm not sure that single posts with many pictures are any better--they will bog down the thread just as much as multiple posts with single pictures. It's the file size that matters....
Just my
*runs and hides*

A few thoughts--guidelines, more than rules, I might add. Common sense and common courtesy should be applied at all times.
My pet peeves:
1) Conversation trumps picture posting, please! Especially when someone new shows up in the thread and introduces him/herself, or a question is being asked--we need to take care of that first. I've seen so many instances where a question and an answer were separated by dozens of pics. Very frustrating for the conversing parties and not very polite.
2) Size matters. I've noticed that smaller pictures load faster than very large ones (I like the 500x 350 pixels or smaller), particularly when many people try to post at the same time--the thread locks and peeps are getting bounced. Happened to many of us recently. We can't control our enthusiastic guests, especially the Reonauts
3) A few words added to a picture post make the post personal--it doesn't have to be a novel; "I like the blue one," or "This one is so pretty," or "I thought you might like this one--it's unusual." Whatever. I don't care for walls and walls of pictures just lifted from Google images.... And we get so many repeats because we all go to the same source.
4) When posting in the welcome thread, we should check what the others have already posted--I've seen the same pictures used by different greeters. We should try not to repeat pictures, if at all possible. I know that sometimes pictures don't show, so it's impossible to always know for sure.
5) I'm not sure that single posts with many pictures are any better--they will bog down the thread just as much as multiple posts with single pictures. It's the file size that matters....
Just my
*runs and hides*