if you say 'ask a lawyer' i'll block you. if you say 'ianal' i'll push without telling anyone else
How lawsuit happy is your country of residence?
If your legal system is reasonable, you could probably just use a short readable terms of service.
Partly lawyers like making hard to read terms to keep themselves in business, but also extra sections get added as people find new ways to cause trouble.
(There was some joke about you could tell how old a restaurant was by how many different signs were posted telling people to stop being annoying)
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