Taints is a funny name when you look at it like that but taints are actually the opposite half of the story.
If you want a Pod to be scheduled with a certain node you need to add affinity.
The taints are to ensure that your average nginx pod doesn't run on the specialty hardware and block the pods that actually need it. In theory the scheduler could be smart enough to evict the pods that don't need the special node but IDK if the kube scheduler is smart enough. Even then it may he preferable to have the taint though to reduce the eviction rate.
If you want a Pod to be scheduled with a certain node you need to add affinity.
The taints are to ensure that your average nginx pod doesn't run on the specialty hardware and block the pods that actually need it. In theory the scheduler could be smart enough to evict the pods that don't need the special node but IDK if the kube scheduler is smart enough. Even then it may he preferable to have the taint though to reduce the eviction rate.