I shut down the Minecraft site about 6 months ago. Traffic also plummeted being that mods are not as popular because lots of the kids are now playing Minecraft with the app or consoles.
It's not my full-time job. It's always been more of a side thing. I don't think I would be able to sleep at night if it were my full-time job. Way too much risk with it.
"Wouldn't you still come out ahead because with more ads you get more impressions?"
You would think but actually no at least not for all of the tests I did and I did a lot of them. You don't really make your $$ from impressions. You make $$ when people click on your ads. If the ads that are displayed are very relevant and your CTR is really good, you make more money.