"We encourage users to take regular breaks. Our services are safe when used properly."
If a growing number of people using a service find it difficult to heed the warnings delivered by said service about how to properly use that service, then maybe the service is addictive. Maybe the warnings aren't enough, but when they aren't enough for enough people, then something needs to change about that service.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.