on this note as i recall from live oasis crocs were all KOS and social with each other

On the plus side, good time to get your chardok faction, lol :3

Lockjaw still aggros normally doesn't he?

Yes, it is normal for lockjaw to aggro. However, on classic live no crocs or caimans in oasis were ever kos except for lockjaw. The conning kos was normal, but they absolutely did not attack, or social aggro whatsoever.

Lv55 Druid getting attacked in Upper Guk by ton knights... Shouldn't be happening.

Decaying skeletons were never kos and you could train other undead Mobs on people. Used to train frogloks on people in lower guk all the time back in the day and mummies and shit on people at the nektulos newbie log.

I don't understand where this whole non kos decaying skeletons idea came from. Part of me thinks this is just a joke?

This change should have been here from day 1 though. Thats my only beef with it.
But I'm just happy it's in I guess :)

I seem to remember it being this way with Goblins in SolA, Runnyeye and Permafrost (which is how it works here), but you could pretty much run right by all other "living" green mobs without aggro.

Skipped over some of the back and forth, but this is definitely classic. I still remember being irritated by green goblins attacking me when I went to SolA for the first time as a high level thinking I could just go wherever I pleased. I also remember faction grinding in Droga on my 60 warrior and having to slowly grind through that dungeon because if I ran straight down to RukGus I would get about 200 goblins on me.