I think Ancient Erudite is Silver Lining.
Note this post and the use of a very strange term, that Ancient Erudite also uses extensively. I don’t want to say what because I don’t want to make better trolls.
https://boards.straightdope.com/sdmb/showpost.php?p=20227415&postcount=106
He’s our very own Caitlan Upton, and therefore is very, very special.
No “u” in labour?
Did you report this coincidence to the mods?
Winner! I thought he was a russian paid troll, but good detective work!
First and only post (in Clusterfuck):
I smell a troll in the wings.
Ummmm no actually. I guess I’m not sure how to report a user. Would I just report a post made by Ancient Erudite?
I’m still mystified. What’s the strange word in that post, I can’t see one?
PM me. I’m not sure what you are talking about.
If that’s not enough evidence to convict, you may notice some similarities here, also.
Ancient Erudite = Silver Lining ???
PM sent.
Got it! Gosh you lot are a clever bunch.
doorhinge is a giant troll, it seems that his dream is to be sent to Greenlandand becomeunemployed. 
Ok, I got that one - nice spot.
I think I know what it is, after searching the supposed learned one’s posts.
Yep, got it. Well spotted.
Heh, wow. I would never had caught that, either. I’m sure I have a tell like that somewhere - so I’d never try to sneak back if I were banned from this place. You can make all kinds of tech changes, but you’re still you.
ETA: Hey, bobot, they could have both been paid Russians, so you’re not necessarily wrong on that!
I could easily sneak back. My elegant prose, perceptive insights and modesty are just like everyone else here.
I just reported that as possible spam. The username is a footwear site. The site is also in the profile as the homepage.