Panchgani
Nothing cuts deeper to someone with depression, than when their serious condition is trivialized by another who doesn’t understand it.
On a personal level I understand your instinctive reaction and empathize with your feelings. I haven't had occasion to make a lithium joke here until now I don't think, so can fairly painlessly not make one again now that I know my post made you feel this way. No problem.
However the fact remains that the post had nothing to do with depression and certainly nothing to do with you. You also have zero basis to be drawing any conclusions about the extent of any first or second hand experience I or anybody else has had with depression or any other mental health issue, so you have no idea who understands what. If it's your general expectation that you should be ale to roam the Internet and that the internet should be free of mental health related humour because you suffer from a mood disorder it is not a reasonable one.