Why politically sensitive or non-offensive questions deleted?

Two weeks ago, I answered a question about why Britain is not returning artefacts to Ethiopia with two simple sentences:

"What China demands from Britain, they get. What Africa requests from Britain, sorry."

The question had been there for a while, but 10 minutes after I submitted my answer, the question was "deleted". My activity showed I had two points for having answered a deleted question. But I found the question was reproduced under another question id, without my answer. Having done lots of programming, I would know how to reindex a question too.

The few other questions I answered after was also deleted, even though they were mild questions and answers like as though someone was shadowing my Yahoo activities and preemptively deleting the questions I laid my hands on. Frightening.

Do you think Yahoo is sucking up to China or do you think there are lots of pro-China trolls submitting deletion requests for answers/questions not favourable to China?

Two months ago, I had a non-offensive question why American Evangelical Christians say that they should not spend time and resources on environmental issues so as not to be diverted from their important goal of spreading their gospel but yet they spend a lot of time and money getting politically involved refuting (or in more modern terms "refudiating") that human activities causes harmful global warming. That they preach asking why should we take the risk of going to hell, and yet they spend time and money defending human activities that kills millions of unborn children worldwide. Yet all the while, their Jesus advocated a life of poverty and care for fellow humans.

There were quite a number of response, all of which were respectable, including from two pastors. That question was deleted. Why?

Frightening. Why??