I guess I'll give my take.
While I do very much like
The Madman arc (especially, since I was a big part of it

), I do admit it was repetitive at times and it got a bit too deranged in my opinion. (it was still a very entertaining and fun arc; there are no bad arcs so far.)
The
Post-Halal'd arc might be my favorite. I already feel nostalgic for it and its "social experiments". I made my account just five days before the halal, and the Alex thread (and by extension the User HoS) was my first real introduction to Kiwi Farms and Lolcows, plus it never got repetitive like
The Madman arc or had filler towards the end like the
Post-Kiwi Ban arc.
The
Post-Kiwi Ban arc might objectively be the best arc. Like
@Rango Dango said, the Criteria of Scum list was Iconic and I think that arc gave us the best videos, (" I wish I am a cute anime neko boy/girl" and "Stop glorifying Kiwi Farms in my comment section"), but to me, it falls short towards the end with filler. (sperging out about AI art/bros and pornbots on DeviantArt and Youtube)
All in all, there are no weak arcs, this show might be better than Breaking Bad.