Does the infini-lift allow you to go down just 1 level

In a word: Yes

It is so incredibly fast. Even better, it's much easier to actually stop at the target floor (even if it's floor 2). For some reason, it's also easier to read the floor numbers. (Personally, I also think it looks better than the previous elevator, but that might just be me.)

It does take a while to save up for it, but I would definitely recommend it.

'Bit-Book' is to Bitizens (the little employees that stay in your tiny tower) as Facebook is to (IRL) humans. The feeds posted in your bit book are, on average, just jokes.

Although, in some cases you will see your employees / residents posting relevant information (for example, in your case), such as "I hate my job". This just means that they have a skill level of 5 or lower in that current position and/or they have a higher skill in a different job type.

My recommendation for your scenario would be to just keep that employee in your Fortune Teller floor for the double stock bonus and just wait for someone else with a higher skill & Dream Job of Fortune Teller to replace that employee (as you already received the tiny buck bonus).