I know I'm not the most active poster here, and I'm very late to speak up, but the new layout is not as convenient as the old one. Searching through one starter post to get the RP's information was no trouble without the extra tabs. It just requires more clicking to search for what seems interesting. Previously, I could get to the site, jump right on to a category's "signups" section to see if anything caught my eye, what was active, what was overcrowded, etc... And if an IC topic had been started, it was usually posted in the signup's opener, so there was very little difference in that area.
With the new format, going to any particular section just gives a list of the RPs most recently posted or given attention by their GM, with some flavor text which actually tends to tell me less than hovering my mouse over the title and getting the first couple sentences of the overview. Extra clicks to get the character sheet, extra clicks to get an indication of whether or not people are signing up and how recently, extra clicks to see if the GM is still in the thread giving feedback, opening another tab to sign up whilst looking back at the character outline... It doesn't make for as friendly a browsing experience.