I'm known to use wikidot, still do for some things.
As has been pointed out to me - if anyone is worried about anything too personal and they have an account not tied to a burner email, now might be a time to consider changing to one. Whether the hack was just some attack at Poland to stop the spread of what Russia sees as 'disinformation' about them in Ukraine (most likely) or not, it has shown others, who might be more malicious to individuals, that there have been insecurities found in wikidot.