Tie more team buff abilities to the affinity range.

[Scar.brother.help.me]

There are quite some straight forward abilities that require you to build more range just to catch more team mates in range to be less selfish and more useful to the team. Pretty often the buffer doesn't need any range for his other abilities and is just fine to cut it down or leave it untouched. Most of them could be tied to affinity range like some Trinity's and Harrow's abilities. Of course there can be exceptions in many cases, but simple buffs like Roar, Warcry, Nourish (toxin), [Shock Trooper], [Smite Infusion], etc - they can become affinity range with no drawbacks and no OP stuff. Don't you agree?

[taiiat]

generally speaking this is better handled by making sure that these shared features have a decent base Range so that even with really low Range it's still usable, but without just giving it to Players for free like you're suggesting.

which a fair number of these already fit that category - having enough base Range that even with reduced Range you can still actually use it, but if you want it to be easier to use then increase your Range.

[Scar.brother.help.me]

My main targets are abilities that don't benefit the caster at all with any range so that it does not require any sacrifice at all to be more useful to your team.
Affinity range is 50m, good enough for any mission, if any team mate is out of this range - then he probably plays his own game anyway..

[Scar.brother.help.me]

Even better is buffs like that were an aura, so that for as long as this buff is on you - it is on any team mate who makes it back to your affinity range for the rest of the duration.

Is it lazy - yes, but Warframe is mostly a casual game, most of the missions are a piece of cake, even steel path and arbis. So why not make it less annoying? Why should we bother with ally buff range at all when most of the time no one relies on your buff anyway, it is just a nice bonus that you got a warframe with a buff in a team- but when you miss buffs because you are not in time 10 meters close to them - you just stop giving a single **** about it at all. On the other hand if you get a buffer in a team and he buffs you just because he buffs himself and you get this bonus *almost for free (*just don't run to the other side of the map all the time like an idiot - it's not rewarding anyway, neither for the team, nor for you)  - you enjoy having one of them in a team constantly.

[TehGrief]

I support friendly auras getting a buffed range.

I had actually wrote a thread highlighting this issue: