The string of text, if you are seriously trying to remember it (which I seriously doubt... do you really try to type in those sentence-long title slugs from memory?!) is subject to domain-specific forms of corruption, in the same way direct quotes from people or TV characters tend to be: you subtly change the grammar or replace a noun with a synonym with which you are more familiar.

Regardless: I am quite serious... do you seriously try to remember and type, from memory, URLs with title slugs?

Doubt he does that, however I collect some links in a text file and the ones with text in them are the ones I can identify instantly. The ones with just IDs are totally random as to what they are and usually requires a comment accompanying them in the file.