Derek Sivers is of the opinion that a fake persona is better than not sharing any details [1]:

> Create and post a back-story to answer (instead of avoid) the frequently asked questions.

Noisy signals about tech literate people is still a signal. If only few experts are planting fake data about themselves, companies can cordon you off and spend more resources in deanonymizing you. By muddying the water, you are planting a target on yourself if many others aren't doing it.

	▲	Minor49er 2 hours ago \| parent \| next [-]
		Actually, noise is the opposite of signal. Data harvesting companies hate noise because strong signals are profitable. It's why Google successfully pushed for people to use their real identities online initially through Google Plus and why they also displayed such an unprecedented backlash against the AdNauseum browser extension after it came out
	▲	Forgeties79 2 hours ago \| parent \| prev [-]
		Depends on the details IMO. I always have my birthday, age, etc slightly off if possible for instance. I don’t claim to be 130 or something ridiculous. It’s all believable, near-accurate but not too near stuff for me. Even comments on forums. I lie (in ways that don’t matter/deceive the people being talked to). I lie about my age, my family makeup, etc. when the info is relevant but doesn’t need to be specific. Example: if I’m 40, I’ll say I’m 43 (or in my mid-40’s or some other general statement) if being in that age range is what matters. If being 40 is what matters, well…I likely don’t need to comment badly enough to give that away.