A user named “Camarokirk” had a different suggestion: “I think you should build a guillotine,” he wrote Dec. 30. “A guillotine is more scary.” User AsaNisiMAGA countered with a practical concern: “It’s better symbolism in every way. But it might prove more difficult to get that big blade into town.” Such conversations flowed freely and visibly on TheDonald.win for weeks, underscoring the openly violent intent of some of the thousands of Trump enthusiasts who thronged the Capitol on Jan. 6, as well as the intelligence failures of the authorities charged with preparing for that day. The clashes left five people dead, including a Capitol Police officer. Cached versions of the comments on the now-defunct site show the chilling precision and pragmatism of the advanced planning for an assault whose reverberations are still shaking Washington, with a hearing Thursday expected to turn a harsh light on operational missteps by the Capitol Police. Comments on TheDonald.win were made using pseudonyms, and it is unknown whether any of the commenters are among the more than 300 people who have been charged in the siege.