That copypasta is talking about natty and and/or TRT that puts you within the normal range.
In other words if Natty Bob has test level 400, Natty Pedro has test level of 600 and TRT Jimmy is taking a dose that puts him within the normal range at say 800, the difference in measurable benefit is fuck all.
Its like the difference between doing a cycle of 500mg vs 550mg.
Absolutely no difference.
So if someone has a natty T level of say 500 and starts doing "test boost" meme shit to get him to 800 he's not going to turn in the the "high test Chad" that these 4channers are always jerking off about.
In fact "Chad" may have a lower natty T level than some ugly incel loser who plays video games all day.