what is a senior member and why cant i easily find what it means?
 

Is there a list of the different types of memberships here? Ive paid in the past and that recently expired...does that change whats displayed?

I doubt this is important, but since its displayed, i figure there must be a good reason...right?

I believe its related to number of posts.

It's just a label that pops up when someone hits a certain post count. Not sure exactly what it is.

just be glad you're not an obsolete upgraded member.

"Senior Member" just means you aren't a newbie. You can change the title on your profile if you don't like it