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.
It looks like the birthday field carries over from an upgrade from 3.4.7, but there is no way to make it required or even available during registration. http://community.invisionpower.com/4bugtrack/rc3-birthdays-r3644/ - Say's it isn't a bug.... to which I'm like:
You'll give us the option to make Location available/required during registration. You'll give us the option to make Gender available/required during registration. You'll give us the option to make Interests available/required during registration. You'll give us the option to make bloody obsolete ICQ available/required during registration!!! I mean.... it's only been begged for by customers for years . 2009 , 2010 , 2010 again, 2011 , 2013 , 2014 It is resolved with a very simple hook in 3.4.7.... so why can't it be basic functionality in 4.0?! It's not like making this one field available in the registration screen is going to breach every server's warp core! I really REALLY want to hear the tap dance on THIS one why we can't have the same options for birthday during registration!!
That is a rather pedantic/semantic way to look at it. Yes is was made from scratch. Yes there is certain functionality we expect to carry over from the previous version even if the code itself is all new!
They may be minor for those starting a new website from scratch, however they aren't minor for those of us that have been around for a decade building our websites on this software and finding functionality that we've come to rely on to be removed or forgotten.
[RC3] Pages - Changing Article Author doesn't change Forum post author 1. article was created by User 1 and the forums are used for comments. 2. article author is changed from User 1 to User 2 in the ACP . 3. Article's author changes to user 2, Forum Post Author remains User 1.