Please do it because not all pc players have console laying around!
[spoiler]Moderator edit: This thread has been moved to the #Destiny forum. [url=https://www.bungie.net/en/Forum/Post/140391030/0/0]See Cozmo's thread here[/url] for more information about the #Destiny tag and its uses.
Feel free to private message the moderator who moved your post, link to topic, for further clarification about why this topic was moved.[/spoiler]
1. Bungie did not create the PC port of D2 a studio called Vicarious Visions did. But as Bungie has left Activision they no longer have access to this studio.
2. Bungie has only so many staff. To create a PC port would take staff away from other projects including D2 content creation and troubleshooting.
3. All D1 content is considered part of the content vault just like things like the Red War campaign to be used in D2 if needed (and worth the time, effort and money to create a PC port of that content).