Anyone else find it suspicious that an account that hasn't commented since right after creation in 2023 (https://news.ycombinator.com/threads?id=Kate0CoolLibby

Anyone else find it suspicious that an account that hasn't commented since right after creation in 2023 (https://news.ycombinator.com/threads?id=Kate0CoolLibby https://news.ycombinator.com/threads?id=Kate0CoolLibby), suddenly posts three submissions from the same domain within 24 hours (https://news.ycombinator.com/submitted?id=Kate0CoolLibby https://news.ycombinator.com/submitted?id=Kate0CoolLibby) with no previous submissions?