I'll start off by saying I really don't think it needs a nerf, even though there seems to be a lot of people thinking it's a problem. The thing is, it's just a simple ballistic ship with AAF, there's not much AI can screw up with, and building a decent loadout for it is very straight forward. Easiest comparison is Hammerhead, very reliable ship that's always going to be doing something useful. It might seem overtuned at first if you look at closest competitors, such as Fury or Eagle, but those are a different topic. There's Apogee, Champion, 20 DP carriers, hell even Atlas MkII. And all of those are competitive with Eradicator when you adjust DPs. So you could argue that the ship is too easy (as in you can't really go wrong with it), but that doesn't mean we should gut it and make it undertuned. There's been way too much examples of ships being potent > community keeps repeating it's too strong > gets nerfed > no one touches it for 2-3 patches when it gets buffed again to pretty much the same level it was originally.
So if Alex caves in to such demands, the only thing I could see is dropping the top speed by 5 su, and maybe touching the flux capacity a bit. I really don't know what would you do with it to not make it trash tier very quickly. The stats of the ship aren't even anything to write home about, it's literally only the AAF justifying the 20 DP cost.