Doesn’t bother me. I’m not a FOSS-only person, although I like using FOSS stuff when I can. As others have said, in a worst-case scenario, you still have your text files. Even if you really went nuts with plugins and have all sorts of custom stuff that won’t easily transfer to another service, it’s still all yours and you can probably recreate most of it somewhere else.
Doesn’t bother me. I’m not a FOSS-only person, although I like using FOSS stuff when I can. As others have said, in a worst-case scenario, you still have your text files. Even if you really went nuts with plugins and have all sorts of custom stuff that won’t easily transfer to another service, it’s still all yours and you can probably recreate most of it somewhere else.