Its not so much about not posting elsewhere because of thieves,
The groups i post too encourage members too notify admin when other members steal photos from their group,and i place my name into somewhere,consquences are they get booted out of the group, and yes they probably sign up again under a different name, but we watch each others backs because we know of each other,and notify the appropriate people, i have confronted people about theft and they reply by saying they are looking for work in the shipping industry and by using other peoples photos they are trying too show a future employer that they are interested in shipping,thinking they have done nothing wrong breaching copyrite laws.
I found alot of Chris Howells photos elsewhere,I notified Chris and the admins and it stopped,
Also some of you are techies,webmasters can it not be done that people cannot save an image by right mouse or other means from here and the only way is by contacting the photographer,e-mail is in their profile,most hobbyists are quite chuffed too get a request, I have recieved books by Authors after requesting photos, that makes it all worthwhile,but thieves are LOW LIFE especially for financial gain,