Ulama E Soo / False Scholars
Determining truth from falsehood at the scholarly level is a difficult job. It requires properly understanding the arguments and weighing them on the basis of knowledge, reasoning, and evidence. There are no telltale signs of false scholars. Even some very sincere scholars can have different viewpoints or reach wrong conclusions due to varying reasons. A common person can only judge the hypocrisy of others. For the advice of Prophet Muhammad SAW on judging hypocrites please see: Hadith | Who are hypocrites