Is setting up a project to burn steem in order to promote steemit a good idea ?
I think that this is typically a man in a boat with hole situation.

Let me explain
Once a man was in a boat in the middle of the sea. Suddenly he discovered that water was coming into the boat.
He had a bucket which he started using to take water out of the boat.
However the reason for water getting into the boat was holes that large fishes were poking into the bottom of the boat.
If you look at the situation it would appear the man is doing the job of saving the boat and himself.

How is this relevant from in the context of creating demand for steem by burning it ?

The boat is steemit. It is not drowning however the stagnation in its price and even the prices getting lower is more in the hands of the big fish who are the big stakeholders that is those who run the blockchain.

So though the action to burn steem is brave and laudable however the end results depend upon a number of factors such as

• What is the current emission of steem ?
• What is the amount of steem being sold by the various stakeholders ?

It would be great if someone can help us with these figures to come up with figures to work with.

Further with your permission dear @crypto.piotr I would like to tweak the solution to get funds for burning.

Here is what I suggest
https://steemit.com/hive-175254/@thetimetravelerz/how-i-would-like-to-build-demand-for-steem-tokens