Since then there's been more than just a few "gold rushes" that have obviously been unintended but FDev took a mea culpa stance about, and just fixed the bug and left it at that.
There was cases where cmdrs who gained credits in by wierd exploits, had taken thier credits away earned by exploit, like when there was cargo duplication, at very first months after relase. There bit more, but I cant really recall what it was, too long time ago. But yeah, mostly was just "fix" and those who gained anything by rush, didnt get penalized, for most of time.
Hell, unless they've fixed them the last time I've cared to look, there's still exploits revolving around manipulating the BGS that haven't been addressed. I don't think FDev cares quite as much about this sort of thing than they did back, what, 7 years ago?
Surely they been more proactive in past, with rolling back, thats for sure.
I think it was more about amount of complains and whenever exploit would affect others gameplay too much or not, in order for Fdevs do something more than usual "fix", atleast in past.
BGS dont directly affects other gameplay (not like using some kind of BGS bug, would cause your ship go boom), like mentioned exploit did.
If you can go into archive of this forums from time when nightshady revealed this method to public, You would find that forum went nuts, one of biggest outrages I ever saw there....
At time, when you had normal G5 bulid, and would meet fully "godrolled" other G5, diffrence in speed, firepower, defences, was quite obvious.... even if you where more skilled than the other, you still would lose against such... it was more than "unfair"...
Getting into competetive PVP was basically out of reach, to almost anyone who could not afford for months of grind or having godly luck, or connections within major PVP groups to be not wing ganked by them.
And many cmdrs complained about it, A lot. This also later caused re-design of old system to what we currently have, as even when exploit was "fixed" the mentioned diffrence of preformance of same ship, and amount of grind required to obtain just one, was subject of many complains about it for long time until that system was replaced.
Though, with all that being said, they did recently undo the progress people made via dumping crazy amount of exploration data, so maybe they'll undo this progress too.
They did? For real? Are you sure?
From what I heard, it was just simply nerfed merits gained so others would not able to repeat same trick.... but to outright delete merits? Now, this is highly controversial move from Fdevs, since technically, exploration data in large amount, its tons of work, given if really happen, to roll back gains from such data.