Before you start to say that other people don't care about something and don't post about it, you might want to go through earlier posts. There is even something like a search button on the site.

But here is the posting that apparently was not made, because nobody care about it.

[1.0.3.3] Life support beyond Environmental Support useless

And among the 60 people that viewed it, no way there might be a developer among them.

True, its a tech not needed much at high end levels.  I too stop researching it quite early.

However, if you do end up putting even just a few life support modules on any military ship, its still worth researching, for the mass reduction techs.  But yes, it would be nice to see the ratios increase a bit, from tech to tech.   It would be interesting to see a game where initial life support systems have a very poor ratio (say 1:7-8), and only achieve the 1:5 mass:range ratios by age of war.  It would certainly slow the game down a bit. 

EDIT - whoops, I unlocked all techs to look a the tech tree  yes, the current ratios are MUCH worse when looking at an unlocked tech tree, but nevertheless, a larger disparity between tech drive types would be nice, rather than the range boost or mass reduction techs making the only efficiency improvement differences, once past early environmental life support.  In a way, its just a flavor issue.  If you want improvement down that line, you need to research it.  I suppose you are only screwed if for some reason you feel it necessary to always pick cost reduction techs, instead of the range boost or mass reduction techs (something which the AI may do, 1/3 of the time???).

This has been broken since day one. The ironic thing is, at first it was really broken bad and Environmental was way better than the subsequent techs. So, they "fixed it" but they only made it where Environment is no longer better, but it is essentially equal to the later techs.

Nobody screams about it on a daily basis, because it does not really break the game, but it should be fixed and if I was the boss, I would be kicking the guys ass who was supposed to have fixed it before.  

Addressing this could indeed have some impact on the large vs tall debate and colony rush, as range certainly impacts an empire trying to expand beyond its borders, rather than invest in the current empire.  Are we meant to obtain the best life support tech within 10 turns of beginning a game?  Certainly not I think.