Creating a Block, layer 0 recommendation

[lordofbikes]

In section Creating a Block see Important notice at section end.
There is a bold recommendation to only and exclusively use layer 0 for blocks.

I think this is not true, it can absolutely make sense to use different layers than 0, e.g. when the block contains decoration or references which are optional for printing.

I recognized this in a forum post, where I added some steps to explain and clarify block functionality.
See https://forum.librecad.org/Insert-blocks-in-layer-problem-tp5720266p5721905.html