Hi Rube, it was me who asked for this. My use case is:

We have a web app and host our IPFS nodes.
Users go to our web UI and create articles like on Medium/Reddit/Facebook.
They write text and can upload image(s). This should be stored in IPFS.
Our UI uses `ipfs.add` (JS code) to add their content to our IPFS nodes.
How can we restrict users from uploading gigabytes of content per post?
For example, I would like to set a limit of 2 MB per post.