Easy parko,!! Its all about opinions marra,. Flynnymarras post ended with lol so don't bite
A wooden corner bead is mmmm a piece of wood on an external corner ,I think if its pva'd and scrimmed and beaded it will be fine.
yes taking them off is best !! but there is another way if the original plaster is solid ? make sure you pva well ,mix up some drywall adhesive to the same consistancy as skim then cover the wooden joints in paper tape (soak the paper tape first) after an hour bead then apply a fibre scrim ....that will take some cracking ......