Why do the bots like old answers?

Not 100% sure that this is what’s going on, but have y’all noticed the uptick in random, dormant accounts getting GAs? I know we all give one from time to time but it seems out of proportion. Are the bots building clout? Amplifying topics? Confusing things? Trying to entice old users to return? What’s the point?

And if I’m wrong about who is doing all the ancient answer loving, let me know that too!