“Look up, do research, investigate, do homework before you dare castigate a community as a whole!!”
Oh, trust me I have.
Not just in my eyes. There are various minhagim and takanos that have become part of a community’s mesorah that have been called out by gedolim as being improper to do and against halacha. Yet somehow, the status of a ‘minhag’ protects it from scrutiny or correction.