Now, if you look here: https://ordiscan.com/, you can see two key statistics about the Ordinals rush:

1. 13.5 GB of our disk space is being wasted by our nodes storing these inscriptions inside transactions. That is 13.5GB used in just 9 months!

Extrapolating, that means that you will be wasting roughly 15GB of storage each year on worthless Ordinal tokens, as long as the demand is constant.

2. Ordinals users have paid over 1385BTC in transaction fees for inscribing this stuff. That means miners have earned literally 1385BTC from this time period of over 50 million dollars altogether.

So yes, it is keeping the miners afloat, but the disk space usage (and the associated spike in mempool fees) is quite annoying regardless.