Say for an easy example that you have 50kb of bandwidth available. You first publish a post for 10kb and notice some typos in there, so you edit it, fix them and click 'update post'...which then costs another 1kb (just the changes are what 'cost' this time).
[Edited to reflect only changes 'charge' bandwidth on edits.]
It doesn't use another 10K of bandwidth.
It actually only uses a basic envelope value which is extremely low, plus only enough bandwidth to describe the delta – the change between the old post in the new post. There's no need to repost the entire content to the blockchain because it's already there. All that it needs to do is to commit a reference to the block where the original post lives and then a series of matching bits which describe the changes.
Editing is not what's eating the bandwidth on the blockchain.
If you feel like editing something, go ahead and edit it.
Aah, I see, so it uses the same bandwidth as it requires to create the post in the blockchain and that I assume is the most costliest operation. Thanks for carification.
Thank you very much for your post!Very many do not know what it is and are frightened.I myself recently encountered this problem.Thank you and good luck to you @sykochica !