If just by holding a coin you are earning revenues why not go for it? You are not even engaging in trade to earn some profit. If it is legit, I say go for it.

I don't think it would hurt the cryptocurrency directly. Indirect affection might take place as the companies losing money might resort to cryptocurrency and trade them to stabilize the economic status.

After Tether situation, many people are in a state of discomfort. I don't know if such option available but I would sugget to closely observe the stable coin situation.

Well there is a downside to every blessings. Researches for more effecient ways to conduct electricity is in process. As the whle wolrd is going ECO, there might be a shift from the general use of electricity for the stations.

You can't predict confidently what's going to happen in this highly volatile market. Although it reached 1400$ last year, you can't expect it is going to be the same this time also. Let's jut wait for the future.