This happens during bulk editing of "Condition". Most-likely, the behavior is identical for single listing edit as well but I have not tested it yet.
The text cannot be formatted properly, whether created on the spot, or pre-formated and pasted. The automated concatenation of sentences runs them into each other with no space after period. Also, paragraph indentation is not possible.
The problem is duplicated because, using the same entry, the program creates "Seller Notes" which are placed farther down, under "Item Specifics".
Duplicating information is not only redundant and annoying for the reader but also a fail-safe no-no in programming because of the errors it can multiply. That aside, the lack of formatting capability is really what needs immediate attention.
Cheers!