Re: BREAKING NEWS: Multiple Exchanges Affected - Possible Global Shutdown
3. No transactions are cancelled, withdrawn, blocked, or hindered in any way (other than their tx id getting changed which is completely irrelevant).
This is incorrect.
The standard wallet software considers change from a transaction to be immediately available, and usable as an input to a second transaction.
If the first transaction is replaced by a rewritten one, the second transaction becomes invalid, and will never confirm.
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Now STFU and educate yourself before speading more nonsense please 
Always dangerous to write something like that