other posts there isn't exactly a single correct answer, such as the one about Einstein.
Being downvoted all the time without any way of being able to redeem myself is frustrating.
Also, citing a reference to back up your statements when you make them can never hurt.
[1] https://news.ycombinator.com/item?id=8949665
Edit: On second reading, it also seems that your statement about vitamins was unrelated to the parent comment, which talked about dependence on increasing doses of amphetamines. As far as I know, vitamins don't have this effect.
Also, try writing correctly - not everyone here does, but it seems relatively common. I don't mean if you happen to make English mistakes, but proper capitalization and that kind of thing make for more pleasant reading.
Welcome to HN!
"Me too" style posts will almost certainly get you down voted.
There are not free upvotes, or an upvotes faucet here. Try to write meaningful comments, preferably in an area where you are an expert. Try to avoid oneliner and jokes, because most of the times they are downvoted.
The best way I've found to get upvotes (for comments) is to either:
1. be the first or second commenter and say something insightful or unique
2. reply to the first or second commenter and say something insightful or unique.
In my experience, comments further down the page, or later replies to the OP, just don't get viewed as much.
But one of the other comments makes a good point. Why do you care? Do employers care about HN scores? Is there a secret club you get into at a certain point? Or is it just about wanting to understand the HN culture better?