Taking nothing away from Bama's recent successes. But one thing OL recruits know they'll get at Miami is staff stability. Mario and Mirabal are going nowhere. And they are the face of the program, unlike whatever OL coach for the season that Saban hires.
To be fair, there are kids that mean what they post, and then there are kids that are clearly trolling. The guys who have followed this for a long time can almost always smell the trolls out (e.g. Dontae Lucas a couple years back).