The poll has ended! Thank you to everyone who boosted or left a comment. There were 194 votes in total, and the final results are:
72% - #SuperBowl and #SuperbOwl sound different in my screen reader
28% - they sound the same in my screen reader
Screen readers where #SuperBowl and #SuperbOwl sounded different:
- NVDA
- VoiceOver on macOS/iOS
- Orca with eSpeakNG (but pronounciation is wrong)
- macOS with a British English voice
- Android TalkBack with a Japanese voice
Screen readers where #SuperBowl and #SuperbOwl sounded the same:
- Festvox Lite (flite)
- NaturalReader
- macOS with an American English voice
- Android TalkBack with English/French voices
In conclusion: you should always CamelCase your hashtags! Especially if you're making a joke using homonyms (two words that are spelled the same, but sound different).