I really don't understand why people keep claiming that Dash isn't private or "isn't as private as XY coin". Dash's privacy so far has not been broken. What better can you ask for?? No, PrivateSend isn't compulsory and, quite frankly, if it were, Dash would suddenly render itself useless to many real world transactions where users actually want or need to prove their transactions. Fully private/hidden/buried/appearing only as a dream is great for some users, but that's one use-case that only appeals to one subset of users. By having optional privacy, Dash is useful for SO MUCH MORE!!!!!!!!! Not to mention that the Dash blockchain is fully auditable, which is essential for long term value and large scale adoption. A currency built on a non-transparent blockchain is, in monetary terms, equivalent to magic beans.
Maybe some people don't like how Dash does privacy. That's fine, go use some other coin. Choice is a wonderful thing. But please stop saying Dash isn't private or has weak privacy, unless you can fucking prove it. Mathematically and empirically, not anecdotally or hypothetically.