This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
This is (theoretically) a programmer forum. I use the programmer definition. By that definition, not having an algorithm is nonsense.
What if it uses a neural network to recommend posts?
So how does that neural network perform that task? There I can see only two possible options:
A heuristic
Eh, please tell me how you’d implement a heuristic that doesn’t work either through magic or an algorithm.