Contrary to Betteridge's law of headlines, I would assert yes, and that is also the answer on the article for the TL;DR; folks out there.

Otherwise don't whine when projects die.

Paying makes sense when you actually need/use those services. Paying "because you can" feels wrong to me. If the goal is to support FOSS, there are many more ways to contribute than subscribing to a service you don't use.