To clarify, I searched and found people saying that they had crashed.
That’s it. I didn’t survey everyone who took B vitamins. I just looked to see if it might be a problem.
The guy has been off two weeks, it’s right to be cautious, imo.
I edited “I think” and “in my opinion” into your post as you are (as communicated in a direct message) taking your information from some forum posts, unfortunately not enough data to be certain.
I find it surprising how certain you are that people should risk their health by taking action that has harmed people here.