In the past I had multiple experiences here when I addressed the issue of bad performers, bad managers or "non-contributors", and a few people have been quite negative about the topic. I never had a discussion like "yes, bad workers are a problem and this is how you solve it". It feels it is a taboo to talk about bad performers here. Is that the case? Can you convince me that everybody is special, and that it's my fault for not acknowledging the contributions of colleagues who are not qualified for their job?
The answer to the question is obviously no.
Looking at your previous three questions, you give off the impression of someone who is very judgemental, and that can cause a low score. Let's look at these questions:
You call your fellow co-workers "imposters" for not meeting your standard. The question was also tagged by you with the tags [idiots] and [retards]. Score is -10.
It's very unclear on what you are talking about here, and it's closed as it's primarily opinion-based. You categorise others as laggers. Score is -8.
This question is about the reaction when you challenged the competency of someone who isn't even in the same reporting line of you. It has a score of 5.
It feels it is a taboo to talk about bad performers here. Is that the case?
Of course it's not taboo.
But since the vast majority here are workers and not management, it's human nature that the majority would stick up for their fellow workers.
Sometimes when you criticize "colleagues who are not qualified for their job", it likely feels that you are criticizing many folks here.
Honestly, some of your questions come across as "I'm wonderful and everyone else sucks" - whether that is the intent or not. Issues with tone can often lead to downvotes, from what I have seen.