I never thought to look if there is an age limit for joining the club site.
Back to 'the-doctors' query, and by the way I hope your shin is knitting okay
.... I personally find it quite normal for persons to post similar articles to ones that are elsewhere, even identical ones. It doesn't seem like a majorly sinister thing does it? At worst someone has copied something.... which is a very sincere form of flattery.
I recently did some research on a fault that I had with my car and the same search brought up similar responses on several sites, even the exact same post titles. The posts on any similar sites can probably be traced back to an earlier posting on another site or even back to the horses mouth.* However, occasionally someone would mention something that they had experienced or use different wording which helped paint a broader picture and which helped me to believe I new what to expect when undertaking the repair. If I had looked on one forum only there would possibly have been a less informative result. It's my internet after all and I reserve the right to use it for selfish purposes occasionally. That is probably my premier reason for using up to nine forums on the net for similar or totally different reasons.... I possibly crack the same joke on more than one forum and don't mind if someone notices. Or if they adopt it themselves..it's probably not as original as I imagine anyhow.
* If this was someones intellectual property then that would be a problem but.....
I probably posted this for the entertainment of a third party more than to be enlightened myself... I probably don't even have a particular third party in mind.
I don't mean this as an attack on anyone or anything other than to say meh! What's up Doc? while munching my carrot...........