It depends. Maybe there are some telltale signs or elements that suggest it's a JoJo reference fanfic, but without specific context, it's hard to say for sure.
It's hard to pinpoint a single 'strongest stand' in Jojo manga. Different stands have unique abilities and advantages. For example, The World has the power to stop time, which gives it a significant edge in many situations.
Some readers expressed that they couldn't continue reading this novel. On the one hand, some readers thought that the protagonist had a divine calculation cheat, which made them lose interest. In addition, some readers felt that the plot had become tedious and unpleasant, and the description of the court disputes annoyed them. There were also some readers who were not satisfied with the description of the emotional scenes and thought that the emotional scenes in this novel were terrible. All in all, some of the settings and plot descriptions in the Song Dynasty didn't suit the tastes of some readers, causing them to be unable to continue reading.
There's no way to really tell if it's common specifically for someone named Jojo. However, in general, reading fanfiction is a popular activity among fans of many different franchises. The Jojo series has a large and dedicated fan base, so it's likely that there are fans named Jojo who partake in reading fanfiction, but we can't say for sure how common it is without more data.
The 'Stand Up, Stand Up for Jesus' song influenced the Christian community in history in multiple ways. Firstly, it strengthened the resolve of individual believers. When people sang this hymn, they were reminded of their commitment to Jesus and were more likely to stand up for their beliefs in the face of opposition. Secondly, it had a communal effect. In churches, when the congregation sang it together, it created a sense of unity and purpose. This unity then translated into more coordinated efforts in evangelism, charity work, and other aspects of Christian life. The song also became a symbol of the Christian struggle against secularism and other challenges, giving the community a rallying point and a source of inspiration over time.
Perhaps this Jojo is interested in exploring different interpretations and stories within the Jojo universe that fans have come up with. Fanfiction often takes the existing characters, settings, etc. from the original Jojo series and creates new and unique storylines. So, this Jojo might be a big fan of the series and wants to see what other fans have imagined.