Appreciate the idea and it's something we talked about in the past. One of the key issues is that while we have a lot of Lexus employees contributing to our site, Lexus has some rules that don't allow their dealers' internet mangers (I see a lot of those on bimmerfest participating) become vendors on communities like CL as they appear to there. If they are openly making deals, etc. they'd run into issues with Lexus unless things change and they'd also need to sign up to be an approved vendor here on CL.
We do have a lot of discussion about these topics however... Pretty much every model forum has extensive sales threads where members chip in with recent deal prices, package discussions, etc. If you want to let me know what model you are interested in and I'll search up a couple of examples if they aren't already linked in the FAQs. Often times Lexus salespeople will chip in on those threads as well.
We also have some good threads discussing leasing, sales tactics, etc (recent example here)