They must be referring to guys who don't put the toilet seat down after taking a whizz.  

I went there for breakfast on an early visit. Dressed smart and took a guide book to look like a tourist - not a sex tourist (although staying at Majestic Grande and just farewells a LT NEP lb). Was given a grilling by the mamasan before allowed in. Interesting place. Great breakfast. The swimming pool was originally a snake pit where the German founder collected venom.  

Apparently this hotel, featured in some TV show, in some country, which became a hit, and the hotel still receives many tourists from that country. It is like an Art Deco hotel, think Black and White checkered floor in reception and funky, old school art throughout. Soi 2 is an awesome base with a good range of hotels to choose from but this one i'll not be visiting   Animal lovers PARTICULARLY welcome  Which country are they coming from?

If you are a monger, planning to take a LB back to your hotel, then it is best to avoid booking into this one: From Trip Advisor ***The historic Atlanta Hotel in Bangkok has strict policies: sex-tourists, drug users, trouble-makers, and undomesticated people are not welcome. Any of these found on the premises are dealt with summarily. Because of these strict policies, The Atlanta Hotel has many detractors or even enemies. The Atlanta Hotel upholds its principles and policies without compromise. As of 1st September 2013, smoking will no longer be permitted anywhere on the premises. *** - this place sounds like a barrel of laughs! Even if you're not planning on taking a lady back there, but are "undomesticated" its best to give it a swerve! SAG

I've stayed here before maybe 18 months ago. Decent price for the location, rooms are fine for bringing guests back, it's often used as ST location, so very much guest friendly. Decent enough pool on the roof. I spent some time during the days on a lounger by to pool working from my laptop, much nicer than working from my room. You'll find a selection of LBs directly out front in the evening looking for business, and there is the famous Thermae Bar directly below if you want some GG action. LBs are not allowed in the bar, hence they tend to gather out front. Very close to CiB 10 too, and a relatively short walk past the throngs of "Wassup bro, want some stuff?" guys to the rest of our bars. And of course loads more choice in both directions along Sukhumvit.