Sure - Twitter may not have any specific requirement for you to use a real name, but Twitter will also likely go out of its way to make make your life uncomfort

Sure - Twitter may not have any specific requirement for you to use a real name, but Twitter will also likely go out of its way to make make your life uncomfortable if you do wish to remain anonymous (not limited to requiring a phone number, excluding you from nice trinkets such as verification, deprioritizing you in its algorithm if you're sharing from a private account, making it harder to RT you). The use case for Twitter is clearly building out a public persona. I'm not aware of many that were trying to do that with Tumblr.