True, I took it that way, that’s on me 
Me too. The bazaar was just an example, one that fit well in this thread. In truth, I also would like to have decorative followers to make all of my builds feel more alive, but that’s a topic for a different suggestion and I don’t want to derail this one 
I don’t see why player-to-merchant barter GUI is necessarily much more complext than player-to-player barter GUI, but perhaps I’m missing something.
But yeah, establishing a currency would be much better. Ideally, it would not be gold and silver coins, as it’s ridiculously easy to get a huge surplus of those, but even that would be better than not having any option for trading.
It doesn’t really require you to be online, although the trade is much easier when you are – but then again, it will always be that way.
I’ve played on private servers with Pippi, so I’ve seen how player-placed shops work. Newcomers to the server would eventually learn where the major shops are and what kind of things they stocked, and they would occasionally make the rounds to check their stock. So if you’re looking for that elusive legendary, you might stop by Crazy Hakim’s Emporium near the Sinkhole, because the owner of that shop has pretty much every legendary possible and they keep selling the spares they get from playing.
Occasionally, you’ll ask people who are online if anyone knows whether that thing you’re looking for is available anywhere, and one of them will let you know that a third player who was online earlier (but isn’t right now) mentioned they were going to put it in their shop.
Incidentally, many official Conan Exiles servers have unofficial Discord servers, and those often include a text channel for trading. All in all, I think advertising is a problem players are perfectly capable of solving on their own, but offline trading isn’t.
Yeah, I’ve been asking for decorative thralls for a while now. But again, that’s a different topic.
Please don’t take this as pointless nitpicking, but I think eggs are probably the worst example. There are several places on the map where you can get a lot of them at once, the process is easy and doesn’t require costly tools, and you don’t need them in large quantities.
On the other end of that spectrum are RNG-gated rarities, like certain thralls and legendaries. You can bet your rear end that I’ll run around and check every shop every day to see if there’s a damn Final Breath before resigning to fighting the Red Mother obsessively over and over again 
Somewhere in the middle of the spectrum you’ll find stuff that isn’t so hard to get – hardened bricks, steel reinforcements, Lovetaps – but you might wanna go buy some of it in a pinch. Not on a regular basis, but as a way to avoid your plans for the day being ruined by a miscalculation, for example 