Same here with staking.
Also similar story with my Bulbophyllum. It was growing healthy, plump bulbs, but never flowers. Already decided he probably doesn't like it in my house when it finnally bloomed. I was over the moon :)
As for Dens Nobile... I guess I just don't like them as much as my other orchids and they feel neglected ;) Other Dens though seem to be doing much better. Maybe finally some blooms!?