Eternal September: https://en.wikipedia.org/wiki/Eternal_September September was traditionally the time of new admissions in US collages and universitie. As a result of these institutes often being the first time many would gain access to Usenet September had areputation of clueless newbies flailing around until they either self selected out or adapted. In 1993 AOL gave their userbase Usenet access. Thus the term 'Eternal September' or 'The September that never Ends.'
Luser: Portmantu of Loser and User. Used Derisively in some online communities in the 90's to refer to new, and often clueless, users.
Kids these days not knowing the history they're repeating... SMH.