Making a website with user profiles

TLDR: What programming language is best for a website with user profiles and will allow them to input text and submit it/update it on the site instantly on their own, and maybe have an upvote/downvote system similar to reddit?
Firstly, I apologize if this belongs in a different category. If it does let me know and I will repost it where it should be, but I think this is a good place to start.
I am not new to coding websites, I am pretty good with HTML and CSS but I have an idea that is new…
Making a website with user profiles

See original post by LapseOfSanity