How an issue is used in a development project is “it depends”. Whatever the chosen and preferred method of the maintainers is. If you really want a concise backlog with concrete stuff, and no “pie in the sky” musings on future major extensions, then Discussion section can be very handy. If you don’t use discussions, you may end in a situation where off-topic’ish issues sit in the backlog like forever, and pile up.
How an issue is used in a development project is “it depends”. Whatever the chosen and preferred method of the maintainers is. If you really want a concise backlog with concrete stuff, and no “pie in the sky” musings on future major extensions, then Discussion section can be very handy. If you don’t use discussions, you may end in a situation where off-topic’ish issues sit in the backlog like forever, and pile up.