That was a very nicely written comment! I think that very long sentences can be useful in situations where you have a lot of interrelated ideas to impart, but it's vital to structure the sentence in a way that allows the reader to take in each idea in turnpunctuatentences in the right places: when the reader has a place to mentally pause between each idea - just for a moment - it makes for easier reading; if you have lots of ideas in one long sentences, you can help the reader by separating each idea so that each idea has its own clause, separated from making it easier to identify where each idea ends (and where the next begins)

If you don't use any punctuation at all the sentence can just read like a big jumble of stuff with a full stop or a period at the end rather than a good sentence even if you're using all of the correct words in the right order you start to lose any sense of differentiation between the ideas and you'll have to reread bits to work out how the sentence fits together.