Edit: I see the problem, even with a self-hosted instance of 1, when you comment on posts in other instances that data is no longer held on your server, so you don’t own it and can’t control it directly, is that right?
The "problem" is also going the other way around. If a large instance is sharing data with your single user instance, they ultimately cannot control what you do with it.
The same is true if you just scrape the website.
How would you feel/do, when there is a stressful day and you cannot have your coffee?
As for pot, i have met and been a daily smoker for many years. Everybody i knew that smoked daily had some social or personal issues and it definitely affected their ability to focus, memory and emotional awareness negatively.
I don't think that daily use of psychoactives can go without addiction. It can be beneficial as medication for some, but there will be side effects and withdrawal symptoms, like with non psychoactive medication too.