I know, i just asked where. I've bought things from bh photo and had almost 100% defect rate. Order from somewhere else and no problem. I'm sure there are defects like any product, but you're probably in the very small percentage of defects. I use these neutriks all the time and they are very common in pro audio and studios. I would try another store nonetheless.
I've bought countless items from B&H Photo over the years, including connectors, and have received exactly zero defective items from them, ever. So have thousands of other customers. Their reputation is beyond reproach, globally.
So while it's perfectly possible that bad batch of Neutrik 3.5mm plugs are being shipped, I hardly think the statement "I've bought things from B&H photo and had almost 100% defect rate" is even remotely accurate. Sorry, that's literally impossible given the QC practices of both the high-end brands they carry and their own exacting standards as a seller.
Companies like B&H lose money when they have to exchange defective items or refund people's money, especially on some small cheap connector where there isn't a lot of profit margin in the first place, by the time they pay for the shipping to replace the items, they lost money.
It is clearly neither in B&H's best interest nor a good business model to ship out a bunch of defective product, the statement above would suggest B&H routinely does this and is to be avoided as a seller unless you want to receive defective product. Nothing could be farther from the truth.