Even though lashon hara [slander] is serious sin, still there is a need to warn people about danger that awaits them. So to speak highly of the great Yeshiva world of the Litvak yeshivot, one must also draw a distinction between those that follow the straight and narrow path of the Gra and the religious world that is obsessed with rituals
There is some sort of "kelipa" (or evil force) that seems to have take over the religious world. Even though I found myself in a island in the few great Litvaks yeshivot that God granted to me to attend, still the wider religious world that seems to surround these sorts of places I found to be of the lowest moral standards. סביב רשעים יתהלכון [That is a verse in Psalms. "The wicked go round about". That means where ever there is holiness, the wicked surround it.]