The usage of "dropping" is confusing here, and implies "stopping the usage of". If the author did not use a rare definition of "dropping" the post would have no purpose.
Sorry if I misunderstood you, but I don't believe the author is advocating for this particular use of "dropping" to become mainstream. The author is explaining what "dropping a hash" means precisely because it is not widely understood. It's basically a term of art, not something created by the author.
In this context dropping means "leaving behind", as in "I dropped my water bottle in a trash can when I finished it." The author did not invent this terminology. He is explaining it to a wider audience.
