The bigger problem is that in many fields, even if you can read and understand the paper, it is not actionable, much less verifiable by you. It may be incomplet

The bigger problem is that in many fields, even if you can read and understand the paper, it is not actionable, much less verifiable by you. It may be incomplete, hide an asterisk as some other branch may mention, or be altogether written as to be unverifiable. The last bit is especially common in the most important but soft sciences like psychology, sociology, economy, history or anthropology... Or worse, it may be in principle verifiable but only at high expense, or the results of the analysis are incomplete or buried.