I knew Jet Cash was far older than 45 but I don't think I ever knew his exact age--props to you, Jet Cash, for staying abreast of crazy tech developments like cryptocurrency.  I know a lot of older folks who still don't know how to use a computer or even have a cell phone.  And you have a level of ambition and drive that I've always admired.  May you have many years to come, my good sir.

But as far as your question goes, I can't say for certain if you're the oldest member here but you've got to be close.  I'd say the vast majority of people registered on bitcointalk are in their 20s-early 30s (and that's just a guess on my part).  I thought Bruno was an outlier, and he was "only" in his 60s if I'm not mistaken.