If they quit the game because they aren't contributing, they won't be missed.

You fail at reading here:

If you are redlined you don't have a spawn point outside the redline and you get all the sp and wp you want.

You are however absolutely right that people should be rewarded for playing and that is the way SP are given that promote Afking.
We now get 5sp for every second spent in a match and only 1 sp for every WP gained.
So doing nothing the entire match stills gives you almost the same amount of sp as that dude that went 23/3 and got 1500 WP

I would reverse that, 5sp for every WP and 1sp for every second.

To really combat afkers, the developers should implement an algorithm that checks for damage done to enemy players. If no damage is done, all sp and isk should be multiplied by zero. If damage is done it is multiplied by 1. if a player fails to get the x1 multiplier within x amount of time, the game would threaten to kick player after x amount of more time. After enough damage done done multipliers are gained, say 3, then the force check for the multiple can stop checking, as at this point it is clear the player is at least attempting to play.

You were not very constructive but I do see there would have to be a work around for drop ships.

As for logis, I am and have been one, myself since semi deep in the closed beta, and see no issues for us.

The main issue in using and implementing an algorithm is to make it simple so it's easy to write and interject into the game. This way the issue of afkers is solved quickly, instead of 6 months down the road.