I see the term used a bit .I thought the term meant different people who shared the same opinion.

http://www.guardian.co.uk/commentisfree/2012/oct/19/munchausen-by-internet-health-support-sites

Munchausen by internet can be bad for your health forum

As paraplegic blogger 'David Rose' is exposed as a hoax, here are some tips to recognise fake illness claims on support sites

Based on more than 100 cases of Munchausen by internet shared with me via my Munchausen website, I have arrived at a list of clues to the detection of false internet illness ...

1. The posts consistently duplicate material in other posts, in books or on health-related websites.

2. The characteristics of the supposed illness emerge as caricatures.

3. Near-fatal bouts of illness alternate with miraculous recoveries.

4. The claims are fantastic, contradicted by subsequent posts or flatly disproved.

5. There are continual dramatic events in the person's life, especially when other group members hav...

6. There is feigned blitheness about crises that will predictably attract immediate attention.

7. Others apparently posting on behalf of the patient (eg family members, friends) have identical pa...

The most important lesson is that, while most people visiting virtual support groups are honest, eve...