The best thing about collectives minds is that it has helped me to find my way through complex radiological cases in an easy manner without any ambiguity or doubt! It's also very helpful for self education when I'm stuck with something new which requires more knowledge of medical imaging (which was not there before).
None so far? Maybe because this service started recently but till now nothing negative came across as such things are always kept confidential between members only if they require one too much privacy regarding their personal life/work etc., otherwise everything remains open unless requested by member itself i guess!! So no complaints here yet :) Definitely worth trying out. Collecting relevant information online helps us solve problems at ease compared what we used do offline prior using other sources like books & journals / articles alone!