Site News :: DSL v4.0
Sorry, but your main complaint would also be true of the latest DSL v3.4.x.
Try:
$ man thisisnotacommand
You will see the same ad for Hurricane.
This is resulting from the man command (script) in DSL, which is using the internet to lookup man pages. Not sure, if John is aware that the site he is using in his internet man script results in an ad when the man page cannot be found.
As far as your other issues, I have already posted many many times, the design goal of v4.x; that v4.0 is a document centric drag-n-drop totally opposite of DSL v3 and prior, application centric application launcher icon system.
The ease of use of a drag-n-drop, folder, document centric, data icon system is an addition to DSL capabilites within a tiny 50MB base.
If it is not your cup of tea then latest v3.4.x is v.3.4.6 as shown on the website's front page.
BTW: If you prefer fluxbox, then boot with the boot option
desktop=fluxbox
original here.