Ok, so you're not saying he actually originally wanted to buy it in order to tank it, you're saying once he was forced to buy it the most expedient thing to do was to bankrupt it.
Being pushed into buying it because of his loud mouth is still a MASSIVE blunder, him choosing to steer it into an iceberg after being handed the keys is just him cutting his losses. It doesn't explain why he would have wanted to destroy the company in the first place. If it was because the site was largely critical of him or platformed people counter to his personal worldview, then buying the company and running those voices out (like he did) would have sufficed and he wouldn't also need to tank it. Likewise, if all he wanted was to platform voices friendly to him and his worldview, burning down the house around himself and his new friends is contradictory.
I think you're giving him too much credit, I think he's just an overconfident dumbass that got himself into trouble and is trying to erase his mistake without ruining his reputation as a genius.