It’s not uncommon that I report a bug that gets immediately incorrectly closed or merged as duplicate. If the bug gets triaged correctly or not is currently quite hit and miss, mainly due to the fact some of the people tasked with the triage either don’t seem to have enough experience, or possibly lack of motivation to actually spend time looking in the issues.
I know the bug tracker is completely overflowing with the reported issues, but I don’t think a competition to close as many reports as possible without investigation is a best way to go about solving that issue. It almost feels like many of these people are literally paid per closed issue, and that is their motivation.
There are bright exceptions that confirm the rule, like Philipp Oeser, but most of the time I encounter someone who doesn’t even take a time to read the report.
Latest flavor is an Image Editor performance issue merged with completely unrelated, pretty much opposite Image Editor issue: https://developer.blender.org/T79518#990988