Otoh having different groups of the sneer, sneercells (no wait that name needs work) if you will. Can also be useful, esp as authoritarianism etc increases. (Not that I think govs would go after us, apart from an infiltration risk).
E: Hell, I myself am prob a risk factor. First the Dutch secret service should have file on me (else they are not doing their job, I was active in student activism, and did STEM (which also had an active (and targeted for infiltration, we know because counterhacks) hacker group) education (a known terrorism risk increaser), before my faulty brain wiring caused me to drop off the map a bit, and I know several of these groups have been targeted for infiltration recently, and long ago). I also have had just too many official twitter police accounts follow me and then unfollow me without liking a single post for it to be just a coincidence (three times being enemy action). Of course, I'm now old and passive, so if they still think I'm a risk they certainly are not doing their job (I could be a source of information however). But this is enough for me to consider that my real life identity is known enough to be a risk. And this is just about the Dutch police/secret service, there is also the risk of TracingWoodGrains like people trying to get all up in your (social) networks to try and get validation from themotte. And I have read enough stories about cybercriminals that you need to think about this stuff long before it is actually needed, also I'm paranoid.
Time waits for nobody.