The problem I have with this sort of decay is that, being automatic, it doesn't take into account even in-game circumstances (let alone perfectly legitimate out-of-game ones such as vacations). It's fine for the Feds to, say, be not so hot on you if you've been ignoring them. But we explorers are not ignoring anyone. We're doing what we are supposed to do which is go out into the galaxy and explore which inevitably takes time.
6 weeks ago I was allied with both the Feds & Alliance. Since then I have been exploring the very limits of the galaxy and, as far as I can tell, have set records for how far you can get. If this were real I would expect at least a little fanfare on returning with both the Feds & Alliance offering me inducements to hand my data to them. Instead they are going to snub me by not even greeting me as a respected ally like they would have when I left. This is only a little thing, but it's also the kind of thing that puts me off because it breaks immersion and shouts "this is a game!". Ultimately, if the factions care so little for me, why should I care about them? Answer: I don't and won't.
6 weeks ago I was allied with both the Feds & Alliance. Since then I have been exploring the very limits of the galaxy and, as far as I can tell, have set records for how far you can get. If this were real I would expect at least a little fanfare on returning with both the Feds & Alliance offering me inducements to hand my data to them. Instead they are going to snub me by not even greeting me as a respected ally like they would have when I left. This is only a little thing, but it's also the kind of thing that puts me off because it breaks immersion and shouts "this is a game!". Ultimately, if the factions care so little for me, why should I care about them? Answer: I don't and won't.