Why do people say its spoiling?

[Fyce]

If you have so little free time, then you probably shouldn't be doing content on day 1. You should be waiting until it's a breeze.

The point is that it's called a "blind run" not a "stupid run". So if you get kicked because you tell that dude who died 10 times already to avoid an AoE, then something is wrong within this community.

Besides, a "blind run" doesn't mean that the mechanics never get explained. If you absolutly want zero advice for the whole run, then turn off your chat, but don't start wasting people's time just because you're selfish and want to figure out yourself why the whole raid wiped 4 times on the same boss. Enough is enough.

So, no, someone shouldn't have to wait a month before playing a new patch just because people aren't able to figure out mechanics by themselves within an acceptable time.
There's a limit on how much people should be entitled/selfish.

The rule should be: people shouldn't explain the strat before the first pull, but don't expect them to hold their tongue after a few wipes or if they still see the same people getting killed.
It's called a compromise. A thing that a lot of players don't seem to know about.