The compressive load is negligible, that's why you can build a wheel entirely out of non-rigid spokes such as liteweight wheels or https://berdspokes.com/
There should never be a _net_ compressive load on a spoke, but a spoke can carry a compressive varying/live load if there's sufficient pre-tension from the building process.
You wouldn't want berd spokes to go slack any more than you'd want steel spokes to go slack.
You wouldn't want berd spokes to go slack any more than you'd want steel spokes to go slack.