Glowfire, K'yon, I believe the cap for RP XP has been set to something like 7,000 XP per reset now. Most people will have a hard time reaching it unless they're doing a marathon RP session. This was adjusted so that players who prefer to focus on character interactions over adventuring can make more measurable progress over time.
Rask et al, I think Endelyon's "increase" was for a single evening while she was testing out how the system for adjusting XP payout works. For the time being, it will remain as it's always been -- the "normal" she refers to -- but it may have been a little higher than normal for a few hours last night.
Akroma, for an "XP pool" idea to work, we'd need someone willing and able to script it. I'm not sure there's anyone raising their hand for that project right this second though? I'd not be opposed to at least exploring the option if someone is wanting to code it.
In general, though, my philosophy is that people are going to value things more if they have to work to achieve them. If being level 30 is the priority a player has when playing this server, it's going to cost in time and effort. If being a titled character that everyone knows about is the priority of a player when playing this server, it is going to take a while and will inevitably require a lot of RP on a single character to get that level of server-wide prestige or global infamy. If running a guild is the priority a player has when playing this server, they're going to find it eats up a lot of hours and takes a lot of work to make it successful.
None of these goals depend on each other. It's really a matter of where the player's placing their priorities. All of my characters have been poor because I prioritized political and guild-focused RP over loot hunting. I could have had rich characters had I focused in the other direction.
In the end, goals
are achieved if you stick to them. There definitely
are level 30 characters on this server. And the reward is made more profound for the effort put in. I've only had two characters hit level 30 in my many years playing here. And both times it was a great feeling, I'll admit that.

I even posted a bragging screenshot the first time I hit 30. But part of the reason it felt great is because it took like a year and cost hundreds of hours of dedication to a single character.
I'm not 100% set in stone on this position, but from a game design perspective, the reason people want to be level 30 is because it
is an achievement -- with measurable payoff:
I'd just hate to see a medal of honor turned into a participation trophy.