When I either add a new dimension or use an existing table as a dimension, the result is a lot of table comments in the definition. You can see these if you script out the table Script Table As > Create To > New Query Window
I noticed these when having to add/update some things in the underlying DW schema.
I was also having some issues with getting some of my dimensions setup and relations configured.
Finally, everything got resolved, but im still left with the question as to how these "comments" are used, especially in BIDS with the DSV ?
They are added via EXEC sys.sp_addextendedproperty
Are they there only for comments, or if they get removed or changed, will the DSV get confused?