Online doctors and psychologists won't help them who are addicted because they don't meet the addicted people face to face. They can only give advice to people who addicted from far away, but if they can meet directly, I think they can consult about the problem and figure out how to solve the addicting. When it comes to mental, I think the meet will be necessary so the doctors and psychologists can find the solution.
In my opinion, this is better than no one to talk to. the best thing in this world is when you lose everything you have or let's say you didn't get the thing you ask for you will feel distressed and lose some confidence and the first thing you need to have is someone to talk that can understand your situation. I'm really glad that we have someone like this that we can ask for instruction and advise us on what to do in the time of calamity and distress.