Has anyone seen earnings from forging? Not sure if it's worth trying to stake my holdings.
Agreed, and even when you do forge a block it is often contains no transactions, so no rewards earned. So if you have 10,000 Ardor and forge you will earn about 1 Ardor a month WHEN it has more transactions than it does now.
If you look at the active forgers in the GUI (Settings -> Generators), you will notice that each has an effective balance greater than 100,000 ARDR (and often greater than 1,000,000). I've been forging with 75,000 ARDR and have generated 2 blocks in 4 days. I used to forge on Nxt and had similar results.