Your time here has put mine to shame. I haven't nearly found as many scam projects, reported as many posts (nor as accurately), or earned as much merit. Congratulations on being a contributing member to our community, genuinely.
You have reported 302 posts with 85% accuracy (242 good, 46 bad, 14 unhandled)
I think most of my bad reports come from the Digital Goods section, which is an entire board of grey-area.
Total time logged in: 61 days, 20 hours and 43 minutes.
I stay logged-in, normally, and I have weeks/months where I am not so actively posting but am still reading around.
I think the time has something to do with your "session". If you've ever had a post sitting in "Preview Post" for long enough and then attempted to post it, you will notice your "session has expired". I imagine your Online time is pegged to that in a someway.