the prohabition is within the patimokkha, parajika & pacittia rules, as already mentioned earlier in the thread.
these rules are for monastics, however the Parajika is also covered by the fourth lay precept and the pacittia is covered within right speech.
The Dhamma is not always common sense, all phenomena are not self, is hardly common sense, just as all phenomena is stressful, is equally not common sense, and please directly support why any part is inappropriate, instead of making general statements they are not, as the line you are mentioning has been seen by members and mentioned it is a valid aspect to include.
He who knows only his own side of the case knows little of that. His reasons may be good, and no one may have been able to refute them.
But if he is equally unable to refute the reasons on the opposite side, if he does not so much as know what they are, he has no ground for preferring either opinion …
He must be able to hear them from persons who actually believe them … he must know them in their most plausible and persuasive form.