I recommend not counting on transmog sells for your monthly gametime. Its a great market, but also pretty random. You have to have the right items posted at the right moment if a player needs a certain item. If this is not the case, of course you will not sell anything to him. There are people making millions of golds a month with transmog. But they are very professional at it and it really takes a lot of time.
This farm almost did not make the list, since every YouTuber and farmer alike has beaten it to death since it first appeared sometime in 2012. There are so many videos on this spot, that it's hard to to stumble across one, even while searching for something completely mundane, like chicken wings or golf clubs. Anyway, you want to pull the entire instance without aggroing any of the bosses, and if your a skinner you an make slightly more gold by skinning the hides. Generally this farm is being phased out by the lvl 58 twilight outpost farm, and with good reason. It's better and does not require you to enter the instance. So more drops for you! Not sure, why anyone would pick this spot over the latter unless you were really interested in increasing you skinning level.
Outlaw Rogues are the most versatile of the Rogue specs. Their build has not changed significantly from Legion though one of their primary abilities, Blade Flurry, can no longer be active throughout an entire encounter. This has little effect in most encounters, though in fights that will require extended AoE times, it will be a bit trickier to maintain damage output.
Formerly, when you visited a new zone, you would be very careful, tiptoeing around, cause everything was higher level than you. But as you dinged (leveled up), you would get more powerful relative to the locals. So you would feel more confident and capable. Dinging came to represent more HP, more Mana, better hit ratio, more crits, more talent points. you felt REALLY good when you dinged, like you had accomplished something. Almost tangible. You would think "now I can go back and take that mob/group that ganked me". And then when you had done all the quests, you would move to another zone and do it again. Fun!