• Can gambling or crypto trading/crypto investment be considered as a skill?
Gambling can never be a skill. It is totally based on luck. Even if you think that predicting is a skill, in the end, your winning chance is totally depending on your luck. In gambling, your winning and losing chances are 50-50. If you lose, you will lose it all. But when it comes to trading, we need so much work and experience to gain skills. I will never put gambling and trading in the same category. Gambling is not a skill but trading is.
• Can a gambler or crypto trader/crypto investor earn as much as $10k in a month besides any of the aforementioned skills?
Both gambling and trading are uncertain. Anything could happen at any time. Gambling, it's based on your luck. But in trading, you can manage how much you are willing to lose by risk management. So to tell you the exact amount of profit, no one knows. 10k is a big amount and you will need a huge amount of investment for that if you choose to trade. Gambling! you can make that much, but again. It depends on your luck.
• is it even okay to classify being a bitcoiner/signature/campaign member as a skill? If yes, under what skill bracket can it be included?
I think it can be classified as a skill. You are writing to get paid. Writing is a skill. You have built up your profile to the position where you can wear your signature. That required skills too. Campaign members are reaching out to the people through their posts and efforts. That's a skill too I guess. Now you tell me what you think.