Banok:
I lost my old 2nd gen character when I was testing this. Well, I thought that if I retire (that option was available!) I will get simply a restat.
But I landed at 1st lvl without exp gain. "Fooooreeeever peasant, yo-ho!". Tried to get chadz for 5 hours (5 hours of waiting!!!) and then got extremely bored. Well, I removed my old character and created another one. Since that moment, I was jumping to 30 lvl/deleting character to try other build/jumping to 30 lvl again few times, but then the Market showed up. Since the text said that:
You can jump directly to level 30 and gain 10,000 gold. However, you will not gain any Experience any more - you will be stuck at this level, and are not allowed to have any alts until you delete this one. You can use this character as a main char, too, though.
Select this character as your main character - that will allow this one (and only this one) to participate as a Hero in Strategus, play as a Mercenary in Strategus Battles, trade with other main characters and do other funky stuff. This is irreversible. If you want to change to a new char, you will have to delete this one and create a new main character from scratch!
I was CERTAIN that I will be able to use it - and bam!
Aside of original main char loss (I had 230k, 2nd gen, 28 lvl) I.... lost the acces to market, too!
That was too much for me. Now I am balancing on a really short border between leaving cRPG and staying. So I say: don't do that, man.