We noticed GRB221009A despite it being 2.4billion light years away. Makes you wonder if someone took the opportunity to encode data in it. Edit: Another reason

We noticed GRB221009A despite it being 2.4billion light years away. Makes you wonder if someone took the opportunity to encode data in it. Edit: Another reason to analyze it is that existential threats are a universal language. Any sufficiently advanced civilization must pay attention to possible threats, so that it can avert them. It then follows that if you want to get the attention of another civilization about which you know almost nothing, threatening them is a viable method. Of course you don't want to overdo it, lest they actually hunt you down. A blast of high energy (but non-lethal) radiation will draw attention without making anyone panic. Intelligent civilization within a huge radius will certainly be tuning in.