Greetings,
I voted for splitting the titles into campaign specific tracks. However, there is some things that I would like to address about it:
1. As others have said, the core skills - what will they count for? Either make them a separate track (Core, Tyrian, Canthan, Elonian), have them add to all the continents (thereby giving a head start on new chapters), or ignore them completely. I'm in favor of the first option (a separate track).
2. Since this a
skill hunter title track, what about the non-elites? Aren't they skills as well? This has bothered me since the titles were first introduced. Add the non-elite skills as a requirement for this title, in combination with splitting the tracks as above, and make the track 5 ranks to max. This, I believe, will produce the time-sink and gold-sink that is wanted in these titles, as well as keeping them a little harder to achieve, as others have posted worries about.
Personally, I'm hoping for both the above to happen, but the final decision
is up to ArenaNet, and I guess I'll live with what they decide, since I'm not about to stop playing over such a thing as this

.
Edit: Oh yeah - and add a sort option for the title screen. It's getting too crowded with all the different tracks that are available. Maybe sort by title rank, alphabetical, or category (cartographer, protector, skill hunter, PvP are good choices).
Merry meet, merry met, merry meet again,
Wyldchild777