Sure, it can be normal. Just like any person might be interested in what others write about them or their alter - ego. It's a way to connect with the fan community on a different level.
Well, it could be a way for the daredevil to see how others perceive their character. Maybe they find it interesting to see the different scenarios and relationships that fans come up with in the fanfiction.
Vinyl Pulp Fiction could potentially be a niche genre of music or art. If it's music, it could be a blend of the raw, analogue sound of vinyl with the edgy, narrative - driven feel of pulp fiction. It might feature stories told through music, like a musical equivalent of a pulp fiction novel, with a lot of character and a sense of mystery.
One popular theme is exploring Matt Murdock's internal struggle with his dual identity. Another is his relationships, like his complex dynamic with Elektra. Also, the idea of how he balances his law career and vigilantism is often explored in fanfiction.
A strong - willed lawyer would be an ideal wife for Daredevil. She could help him with legal matters related to his vigilantism. Also, she would be able to hold her own in the dangerous world Daredevil inhabits.