How about this: if someone wants to do this and thinks it's worth their time and energy, why don't you just let them do it without complaining about it? It's their life, their circumstances. If it wasn't working for them and/or if they didn't enjoy it, they would stop, don't you think? If they didn't think it was beneficial, they'd try another method. It sounds like you're just bitter because the person it's not benefitting is you. Sorry, but that's your own fault, not everyone else's.
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