Excuse me sir, but you took those points out of a post and turned them into questions, taking each out of the context of the original post, which is simply a list of things that could be omitted or simplified during brewing (in contrast to not omitting the step or the more complex solution). You then posited your knowledge in an attempt to make yourself look knowledgeable about the end result and get an 'atta boy out of it.
The empirical knowledge you posted is nothing new.
Adding to, modifying or clarifying the list would be contributing to the thread. Constant counter pointing with opinion, "you" oriented posts and "this^^^" type posts doesn't contribute anything.