You didn't actually ask or open a dialogue; you made a prescriptive statement with a built-in expectation. When you say, "I look forward to your blog post" you'

You didn't actually ask or open a dialogue; you made a prescriptive statement with a built-in expectation. When you say, "I look forward to your blog post" you're essentially assigning them work based on your own interpretation of their interests. It’s not really about whether you sound nice or if sarcasm is preemptively dismissed. The problem is that there's no actual invitation or question and it comes across as presumptive and entitled. What makes it even harder to take seriously is the follow-up: "[a]nd I mean that honestly, no sarcasm at all!" That line doesn't sit well, because it suggests you knew how it might come across but chose to push it anyway. A bit more curiosity or an open-ended question could have made all the difference here.