Earlier quoted context omitted.
Recommending Ritalin at all as a first response is dangerous as well...
If you would check again: it’s the third advice, not the first. You cannot get it without consulting a psychiatric MD, and at least in Germany, you have to commit to long term behavioral therapy as well. To make it as clear as possible: I would not recommend popping pills as a solution to the problems faced by the parent comment, but as a viable part of an integrated solution. Fear mongering doesn’t help anyone.
This is your first advice. Anyway, no need to get pedantic. Fact is you're carelessly suggesting the use of some pretty heavy and specific medicine, to someone you don't know, based on a few words of text he wrote on an anonymous internet forum.