If your website has a “See more” link, I assume that indicates that the rest of the article or site is unimportant or uninteresting, so I basically never click on it. Why would I?
Now, if you share 20 or more full posts and then have an “Older posts” link at the bottom, that’s different. (And much better than having a script to make the page endlessly scroll.)
Does that seem weird or contradictory to people?