Hard but not impossible. The number of regulars (tl3) fluctuates around 80 - 100 members constantly.
Also for the sake of keeping sanity, the number of posts / topics to read is capped at absolute value:
- of topics created in the last 100 days, must have viewed 25% => capped at 500
- of posts created in the last 100 days, must have read 25% => capped at 20,000
That is doable if you visit 5 topics each day and read 200 posts.
Check out user list to see how much posts people can read 
. It is much more than that.
And btw, our total board activity doesn’t exceed capped values yet.
We recognize Regulars because they are members that have been following closely what the whole message board was up to for the last few months. There is high probability they have seen pretty much all significant guides, journals, projects and discussions so they know the context and can help others to orientate on the board.