One way for the Sonic community to deal with 'erotic sonic fan fiction' is through education. They can make it clear to fans, especially new ones, what is acceptable and unacceptable within the fandom. Another approach is to have strict moderation in Sonic - related forums and communities. Moderators can ban users who post or promote such inappropriate fan fiction. Additionally, official Sonic channels can issue statements condemning this type of content to set a clear standard for the community.
Well, a comic book issue is basically one publication of a comic. It might have a self-contained story or be part of an ongoing narrative. Each issue often has its own number and cover art.
It's hard to say. Maybe you can look it up on the official website of the comic or ask fellow comic fans. Sometimes the availability of specific issues can vary.