The image from reddit seems to be a mix of Japanese and US yellow edition? Not sure but here are both in comparison:

Original:

Version from reddit:

So being depressed can also be a symptom of something far more serious than just depression.

This is very poor wording. Depression is one of the deadliest illnesses in young people.

Please note that Germany has (compared to other EU members) quite strict and company-friendly protesting laws.

Such protests may be even considered as political protest (Politischer Streik) which makes them not illegal per se but could be illegal. https://www.bpb.de/themen/medien-journalismus/netzdebatte/219308/ein-bisschen-verboten-politischer-streik/