Today, if you're not logged in, you're at 12:30 PM today (5 hours ago) after the 5th topic in the "Recent Topics" sidebar on the homepage.
If you log in, there are TWENTY topics, each of which have multiple new posts, which culminate in the oldest of the 20 topics being around 12:30 PM today.
In other words, 20 topics with activity in the past 5 hours, rather than 4 or 5. So yeah, you're totally missing out if you don't log in.
Just to give you some idea of what you're missing on CathInfo if you don't have an account and/or aren't logged in.
That is all.
P.S. CathInfo traffic is up about 50% compared to normal, using the metric of "Members logged in during the past 24 hours".