I dug into this, and while the user is technically right about the statement being made, the numbers themselves are classic wartime theater. I tracked down the IRGC’s original claim via their state-affiliated Tasnim News Agency, where their spokesman, Ali Mohammad Naini, actually boasted about 650 U.S. casualties in the first 48 hours to project strength. However, the reality on the ground was far different; looking at U.S. Central Command reports and verified briefings from the same window, the official count was actually 6 deaths and 18 serious injuries. The IRGC basically took a tragic but limited engagement and inflated the numbers by over 2,500% to create a "victory" for their domestic audience.
The original poster was smart to suggest a "grain of salt," but they missed the bigger red flag in their own sourcing. They linked to an automated Bluesky bridge bot, which is basically a digital "game of telephone" that strips away the original context and makes it impossible to verify who is actually talking. While the IRGC did eventually see higher casualty counts as the conflict dragged into April, their initial claim of 500+ deaths in a single staging area was pure propaganda designed to win the information war, not reflect the actual battlefield.