Please. In my mind, users fall into two groups:
Regulars. They visit Politics.SE regularly and are generally familiar with the SE model. There may be a significant variation in their knowledge of how these sites work, but they are all generally familiar.
Wayfarers. They don't know how things work here. Many of them may be brand-new, perhaps drawn in ...
I added the notice because your answer was attracting many flags and comments (see also Ekadh Singh's answer which explains the purpose of the notice). Most of these interactions were not constructive:
The answer was flagged as: 'Rude or abusive', "misinformation", and propaganda.
There was a debate in comments about the use of the term 'bottle ...
I think you misunderstood the meaning of the controversial post notice. The notice said
Controversial Post — You may use comments ONLY to suggest improvements. You may use answers ONLY to provide a solution to the specific question asked below. Moderators will remove debates, arguments or opinions without notice.
Using comments only to suggest improvements ...
I was going to just leave a comment, but decided to expand this into an answer.
I'm skeptical that adding a 'notice' like this, is a valuable change. It might actually have negative value, if it's applied only to certain posts.
My fear would be that this only gets slapped onto questions as a way to further legitimize pruning unpopular answers/comments(...
And it depends on how this is implemented:
Who decides that such a banner appears?
According to which criteria?
When, that is: how soon does this appear?
I guess that methodology and procedure will have to be written down and explained beforehand, at least here on meta, if implemented.
And if there is such a rule, I guess I'd like that to be ...