Malicious app developers offering to buy old apps from developers who are no longer active, so they can push malware onto those users

I just got offered by these people to sell my account for my old google play app. Googled the people offering, and I found this thread. Someone in the thread called this out as a malware vector, and I think thats the only way my app would be worth $350. Could this really be an attack vector?Crazy.