Twitter, without an account, is pretty much unusable. It doesn't show you follow-up tweets or replies, and sometimes no tweets at all. The choice isn't "do I access tweets using this or Twitter", it's "do I access tweets with this or not at all". If there's useful information in a tweet, I don't have a problem using this service, even if it logs my IP - that's a pretty normal thing for any service that is big enough to e.g. need rate limiting.