[Missing] Ability to limit topic title length

[esquire]

​Because it is bad for SEO regardless of where it is on your site.  Page titles should not be longer than about 75 Char... 150 char is really pushing it.   You'll start getting dinged by Google in Webmaster tools for having page titles that are too long.

Exactly correct. There is nothing wrong with having long titles and you won't get penalized for it, e.g. manual action, although I'm not optimistic about performance.  The pros and cons are explained here, it's your site to do with as you wish. As of right now it doesn't appear that IPS takes the same approach as some of us do, as echoed above. Opinions will vary and this one may not to be coming back and may have to be a modification.