Many in the wizarding community would probably be very critical. Fanfic is often a passion project for fans, and Vernon's motives of just making money from it would be seen as wrong. They might organize to stop him from selling the fanfic. On the other hand, there could be a few who are curious about what a Muggle like Vernon thinks about Harry and the wizarding world through his fanfics, so they might buy them just to see what's inside, but still be ready to condemn his actions.
Perhaps Vernon Dursley sells Harry fanfic to get back at the wizarding world that he despises. He might think that by spreading false or embarrassing stories about Harry in fanfic form, he can somehow undermine the reputation of wizards. For example, he could write fanfics where Harry is shown as a bumbling fool, completely different from the real heroic Harry. However, this backfires as the wizarding world sees it as a comical attempt by a Muggle and it actually makes Harry more popular as they rally around to defend him.
Many of Harry's friends would be deeply saddened. Hermione would try to mediate and see if there was a way to save the marriage. Ron, being Ginny's brother, would be in a difficult position, torn between supporting his sister and his best friend. The younger generation who looked up to Harry and Ginny's relationship might feel disillusioned.
The wizarding world would likely be in shock. Harry is seen as a symbol of hope against Voldemort. His death at the hands of Vernon would be a huge blow. There would probably be a lot of anger towards the non - magical world for allowing such a thing to happen.
Most would be shocked. The Gryffindor - loving community that adores Harry would be appalled at his choice to marry a former Death Eater's wife. There would be whispers and rumors everywhere. However, some might see it as Harry's way of promoting unity and forgiveness. The pure - blood families would be in a state of confusion. Some might be angry that Narcissa is marrying outside their traditional pure - blood alliances, while others might see it as a way to regain some status through Harry's heroism.
Some wizards might be shocked at first. They are used to Harry fighting dark wizards and creatures, not mountains. But if they understand the threat the mountain posed, they might support his actions. For instance, the Ministry of Magic might initially question him but then realize it was for the greater good.
At first, there would be a great deal of buzz. Fans of Harry would be curious about Luna and vice versa. Some pure - blood families might be a bit snobbish and question Luna's suitability, but the fact that Harry chose her would carry a lot of weight. The media in the wizarding world, like the Daily Prophet, would run stories for weeks. Friends like Neville would be ecstatic. The Hogwarts faculty would be proud, seeing two of their former students find happiness together. As time passes, the wizarding community would come to accept and celebrate their union as a sign of a more inclusive and loving wizarding society.
Some in the wizarding community might be in awe. They would see it as a great honor for Harry and a chance for the wizarding world to gain access to an even deeper level of magic. After all, Hecate is a powerful figure in magic lore. However, there would also be those who are fearful. They might worry that this union could disrupt the balance of power that has been carefully maintained in the wizarding world for centuries.
Some in the wizarding community might be very accepting. Harry's friends like Hermione and Ron would probably be supportive, seeing how happy he is. However, there would also be those who are more traditional and would be against it. Pure - blood supremacists would definitely not like it and might cause some trouble. The Ministry of Magic might also be a bit hesitant at first, worried about how to handle the situation in terms of secrecy laws and the like.
The wizarding community would likely be in shock. The old rivalries between Gryffindor and Slytherin are deeply ingrained. Many would probably be critical at first, especially those who are more traditional. However, some might see it as a sign of a new beginning and a way to bridge the gap between the two houses.
The Slytherin house would probably be outraged. Snape is one of their own, in a sense. They would demand justice for Snape and might even use this incident to fuel their long - standing rivalry with Gryffindor. There would be a lot of tension and conflict within the Hogwarts community as a result of this act.