Does the user have the right to demand that his materials posted in public access be removed?

Question

Law in IT

Imagine there is a platform, such as habr, where users can publish their articles.
When registering, they agree to the rules, which say that by publishing articles, they give the go-ahead for their publication / demonstration, etc. on the open spaces of this site.
Does the user have the right to demand the removal of his article published by him on this site? What law governs this?

Answer 1

Yes.
Copyright.

Answer 2

has the right to claim. it is obvious.
google "right of withdrawal"

Answer 3

The author, of course, should consult with lawyers, but I would start from the following:
Article 1272 of the Civil Code of
the Russian Federation the case provided for by Article 1293 of this Code.
(as amended by Federal Law No. 35-FZ of March 12, 2014)
(see the text in the previous edition)