HolyWar: ​​Template engines. Do they need? Are they wealthy? Forum.

It's scary to think, but it is worth saying the word template engine, as the red eyes of embittered developers start to look out, who are ready to cut your throat for just using this word in the clue. Millions of developers all over the world use them, but despite this, the theme of holy war for and against templating engines always becomes a cornerstone where this word sounds. This situation on Habré has already pretty much got me, so I propose to discuss this topic here! in a separate topic, in order not to discuss this topic in all other topics, raising it again and again.


then here I will edit the message and write down all the theses that we have developed.
I collected the results here:
Disputes about template engines: trolling or clever thoughts?

PS
I sincerely thank everyone who spoke in the top! You helped to understand the main issues that arise in this topic. I sincerely hope that this will remain a place for these disputes and when there will again be any review of the template engine, then you will not be littering it with an offtopic and will not let other people do it, but politely throw a link to this top.