It doesn't seem like this product can be misused for anything particularly evil. Aside from hacking into the database and stealing I don;t think you can use code search for anything unethical. This assumes that the code itself isn't used for evil.
Most changes center around security updates and better indexing of code / recommendations for users.
Additionally, storage upgrades and service time upgrades will be rolled out
This is a piece of software so disposal is essentially free. Should you want to dispose of the servers there are specific protocols for electronic waste in the United States