The 10% is a bad idea. The tax affects people who use proofofbrain.io for posts. These are the people POB should want to encourage.

The tax ends up benefiting the person who uses leofinance.io and who drops POB as one of a dozen tags on every post.

The tax also undermines the claim that the Hive blockchain does not charge fees (opting to pay for things with inflation on the coins).

The tax may have been discussed when POB launched. That does not mean that it was a good idea.

The past is full of bad ideas.