My problem is that I will click on a post to begin reading and then notice it dates back to 2023. The ones within 100 days only have like 30-50 posts, mostly.
ETA: I just noticed that next to the post title there is a larger blue icon which tells you how many posts you have not read in that topic. GOOD thing! 
I can loan you my hazmat suit and you can go peep the arena forums
Not really true… esp some of the mega argument threads. Or even the CS Lounge! That is usually only 3 months at most.
Tip - start at the end of a thread and scroll backwards. To do that quickly, on the forum thread list click the date/time of the last post on the far right. That takes you to the last post instead of the first.
Oh gosh no! GD is bad enough.
Waggle Lounge is usually safe though.