How to control?

Is the era of controlling by power passing away?

When somebody suggests in a blog, and leave it up to readers to consider appearing at a stated place, date and time, and in a specific attire, how could it be stopped or avoided?
These people have a certain point of view to make, but others who don't know about this may also just happens to be there in matching attire.

Is this considered an organized event?
How could this be managed?

I doubt it can be tackled by any forms of power. There is a great need to build trust through true love, i.e. practice and demonstrate living for the greater good lifestyle.