When I was a sprout I was invited to Novice Network. There, my questions got answered very quickly and thoroughly. The mentors and sprouts also go into instances together pretty frequently. When a sprout asks if anyone can help him with a dungeon, a lot of mentors will often jump at the chance to help. In dungeons, mentors also stop and explain the fight if a sprout wanted help.
This is what makes the community so great. My experience with mentors has made me decide to stick with this game. You'll never find such lovely people in other games. Thank you Yoshi P for deciding to implement the mentor feature.