Your posting title isn't based on the number of posts you have made. (The forum is. (Well, you get a bunch of stars, based on how much junk you put out. Pretty much the same as a title.))
Your posting title is based upon the rating of the posts you have made. When you start, your default rank is 3.00. Once you have fifteen or more posts, you can get a grading.
The title you will have will be:
Average rating: Title
1.00 - 3.15 No title.
3.16 - 3.65 Scholar.
3.66 - 4.15 Sage.
4.16 - 5.00 Guru.
I planned to look these up and include the link to the page where they're listed. Sadly, I can't find it. The numbers are taken from memory and therefore may be a little inaccurate. But, I'm pretty sure they're close. If I find the page at a later time, I'll come back and edit this with the correct figures.
What happens is that your current average score defaults into any new posts you make. (Which makes it pretty tough to move up, or down, once you have a bunch of extant posts.)
Your current rating is 2.42. Which, in short, means that a whole lot of people have rated your posts pretty badly. If you once had a posting title and now don't, you either wrote some awful posts, or someone decided they didn't like you and gave you a stack of '1's.
And... Since you have 106 posts, it's really not likely you'll be getting a posting title again any time real soon. (You'd need an entire shedload of well rated posts to acheive this and that's not something anyone is likely to acheive real fast. In this instance, the use of an average kinda works against you.)
Anyhow, I hope that helps a little.
"Death is coming..."
Having finally attained my Guru tag, I've discovered that you don't get it at 4.16. I'm not sure of the exact value, but I'm inclined to believe it is probably 4.35. (It's more than 4.32 and less than, or equal to 4.35.)
Edited, Wed Jan 9 10:11:37 2002
"Te aurdire no possum. Musa sapienum fixa est in aura."