This is china modern coin forum. However, it is more medal photo been update and post.
Where are the china modern coins collectors ? ..........................................
Waiting for you to post it. ;-)
Nah, I am newbie and part time dealer.
I might be shot down If I post video or photo here. I lazy to put disclaimer.
Sharing information is norm here NOT selling, promote and Pumper & Dumper 
I think all you would have to say is if you were currently buying or selling the coin for a disclaimer.
I don't know that there is any rule that precludes anyone from posting pictures, video, audio and/or similar material in this or any other forum. Most forums will require that it should be wholesome and free of bias. It is assumed that forum members and guests know the poster and the relationship with the item being showcased. Such knowledge includes whether the poster/forum member is an amateur enthusiast or a professional/semi-professional coin seller (full or part time seller) or a combination of both.
I believe most forum members' credentials are known, after some time and familiarity, to regular visitors to the sites; forum members who occasionally sell coins or do it full time are generally known and other members even buy coins from fellow members. Coin collectors don't have static collections; they at times may need to sell some or all of their collections either to upgrade or quit collecting. It is accepted here and elsewhere for members to buy and sell coins, especially in designated sections of the forum.
The only other area of sensitivity is the potential impact of forum members' postings, whether written or audiovisual, on market conditions. It is a fact that information gleaned from a multiplicity of sources can influence how markets behave. We see that in various iterations of public trading including the stock market. It also happens in coin/medal markets.
One would prefer markets to evolve naturally without impact from pundits. That is one of the ways of ensuring stability in the market. The dynamics of coin collecting often leads to sustained appreciation in valuation of certain coins. It therefore becomes troubling when markets are suspected to have been impacted by verbal, written and audiovisual output from parties that may gain financially from the resulting market movements. Whether this concern is real, presumed or imagined cannot be conclusively determined without a thorough investigation. The fact that it is often onerous to determine wrongdoing and prevent false accusations is probably why there is a lot of sensitivity about the issue in the first place.
MCC forums such as this, hopefully, welcome information from forum members that will enhance our knowledge of the vast variety of coins and medals produced and continue being produced by the China mints. A classic example is the currently evolving thread on the Classical Garden Series; I am sure many forum members have learnt a lot from the information proffered by members. Everything about the thread seems to be above board and nobody seems to have an issue with it.
Many of us come to this and other MCC forums to learn, entertain, blow off steam, rant, have fun, relax, seek encouragement and inspiration from the MCC community. I believe that most of us are adults. This means we learn best visually and benefit from visual material presented by members.
As long as everything is "kosher" I don't think there should be fear of posting visual or audiovisual materials on forums.
Finally, I believe that forums should have disclaimers at the index page to cover activities and interactions. This should cover the usual conditionalities. I don't believe that it is necessary for individual members to have disclaimers attached to their postings.
If someone has a coin selling business he/she can optionally place a link for interested readers to peruse current offerings. There is absolutely nothing wrong about buying and selling coins. Sellers often have vast/critical knowledge and information on coins; therefore their active contributions to forums should be encouraged especially in the area of MCC because we rarely get direct information from the mints.
But this is just my opinion and understanding of the current status of things and I stand to be corrected.
Thanks and Respectfully.
