Hi Sarah,
yep, I understand your caution and certainly mindfulness is required in any online forum and political/controversial hot topics are not something I routinely tweet about. But putting forward a well reasoned argument and doing so in a polite and honest way is not something we should shy away from. I think when we start to make jokes about issues, or enter into support for or against extreme views, and doing so in angry or reactive ways it is when we start to have think is this the right thing to say.
However, my main point is that even if you have separate accounts for work and “not work” it is still the same person.
Lawrie