Writing about experiences like meetups, talks, and conventions is a great topic for your blog! There's a very successful C++ podcast (cppcast) that has a large portion of their episodes based on the same thing. They talk about their favorite speakers, what they learned, and whatnot.
As for knowledge heist, as long as you aren't using someone's words as your own there's no fear of plageurism or stealing. Your goal is to learn and hopefully benefit someone else in the process (why you shared it), and sometimes the unique way you write something will make it click for someone else. If your article or a passage looks similar to someone else's, just be sure to give them credit. One of my posts is an update to another blogger's post from years before to account for changes in Visual Studio since then, and it's now become a six-part Salesforce series that I continue to build onto!
Happy writing, friend. I am excited to read your posts and especially look forward to anything you have to teach us about neural networks. I've always found that topic incredibly interesting!
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