What's the recommended method for sharing photos here at LuLa? I've seen some posted as attachments and others as links to Flickr or 500px.
Both methods are ok.
Another thing: a lot of people these days are using tablets and phones to see posted pics here. If the size is between 800 and 1200 pixels, that would mean some scrolling in order to see the whole picture. So, as a courtesy to those forum members, the suggestion is to either post up to 800px or 1200+px (which would open in a new window).