Your options are XMR(monero), cash or barter. Or hawala as the other poster described here, but I do not know much about that.

Upvote is mostly if I want better visibility for the post and that is the intended feature even if you do not agree. Sometimes I upvote comments that I like, because comments are not really about that and more about opinion. I do not have downwote option on my instance, nor can I see the down votes which is fine for me.

It depends on the instance. I created an account on mastodon with guerillamail which would be even more suspicious for an average website than your alias email. A tip, if you do not mind using icloud email, you can even create one with some effort without giving real personal data and using apple hardware (Virtual machines ftw), you can take advantage of its free alias email addresses which would be accepted even on most strict websites.

At least a couple of dollars one time donation if I used the software for some time. If it is very useful software for me I donate more often. I try to avoid proprietary software for ideological reasons, so can’t really compare for this reason.

I liked that in the beginning of The Boys it was mostly normal humans approaching supers with creativity. In later seasons it seems more like superheroes against supervillains with some normal people on each side. Like a marvel series but with gore and obscenities.