In Australia I think the public in general denegrate Trek as a show for geeks and losers.
Never in my experience. No more than people denigrate
anyone for anything, and in Australia that kind of good-natured ragging is always done with Aussie humour.
I grew up in the UK and Australia - I noted quite a difference in the public's perception of Star Trek between both countries. Sure, in the UK people would give a gentle ribbing for having a like of Star Trek - but most people knew the various series and usually had an interested in at least one. Whereas over here I find that most people's reaction to Star Trek is negative.
In that case, maybe
you're overreacting to how Aussies rib someone, not the topic of the ribbing.
The only reason why TNG got no respect from the Nine Network is that the Seven Network took the rights for TOS from Nine in the early 80s. Nine was pissed. Seven was then offered the rights to TNG, but only after it had had a year out on sell-thru video, a lucrative deal between sister companies Paramount and CIC-Taft. Seven then got pissed, and refused to take TNG at all. Nine wouldn't buy it back, Network Ten and the ABC were broke, and then Nine Network owner, Kerry Packer (a huge ST fan), insisted that his network buy it after all.
The Nine programmers were now pissed with Packer, and were determined to bury the show, but then
it won its late-night timeslot consistently, so the Nine Network found they had a unique hit, and could thus guarantee to advertisers that their ads would be in the top-rating late night timeslot, instead of running a possible third in prime time.
I have been in fandom since 1979, have run a national ST club of over 1000 members, appeared in two Nine Network ads promoting TNG, been part of magazine photo spreads in "The Australian" and "Sydney Morning Herald" newspapers, interviewed in "Ralph" magazine, and on national TV shows ("Today", "Good Morning Australia", "MTV", "Level 23", etc), and have not been badly treated by anyone in the media because I was a Trek fan. No more than they rag footy fans, "Star Wars" geeks, "Big Brother" fans, or lovers of Aussie drama.