"The h1 is the most important tag and it should never be skipped on a page. Search spiders pay attention to the words used in the h1 tag as it should contain a basic description of the page content, just as the page title does". -
Woorank
As of right now profiles/groups/events all use H2 for the page titles. Ideally, they should be using H1 titles. This signifies to the search engines that this is the main theme of the page. Use CSS to make the H1 tag the same as the H2 tag so that way we maintain the same styling. I've checked many other sources to confirm this.