I’ve talked about it before many times but as I see this happening again and again, I write it here too. Most of free software services are provided by individuals or small teams/collectives that are generous enough to spend their time and money to help society be more free and secure. We should know that nothing is free; we may not pay for these services but the maintainers are paying to keep their software/serivce up. They pay for servers, domain names, developing costs, and some other stuff.
Some people may not be able to donate or help developing these libre software/services but the thing we can do is to avoid causing more costs for the maintainers. It’s actually pretty simple. Just don’t create an account on a libre service/software if you don’t need it. This can reduce the amount of data that those maintainers should store/handle on their paid server and this can help their service cost less.
I encourage you to share this note (or a similar one) with your friends to help these service providers.