The SecuROM "kill switch" supposedly kills your EA game account, and furthermore it supposedly would prevent you from running the game at all, (unless you purchased a new copy).
There was speculation earlier that a SecuROM "kill switch" was present, and such speculation had been previously dismissed.
Here is the relevant quote:
"you [sic] account may be at risk of banning which in some cases would mean you would need to buy a new copy to play Spore."
According to this Moderator, after the so-called "Kill Switch" is activated the only way to play the game would be to buy a new copy, (or use the pirated version) "in some cases".
My issue is that EA would place a DRM "kill switch" into the game software at all. Remember that the software is a product that you bought and are running on your computer. With a SecuROM "Kill Switch" (if such a beastie exists) EA could deactivate your software without your permission, knowledge or control, and for any reason whatsoever.
The Astroturfing by deletion of EA's own forum comments is just icing on the cake, (which I concede that EA has every right to do).
They do not have the right to prohibit your use of purchased software through the use of what amounts to a root kit installed without your knowledge or consent, just because they don't like that you have written in their forums.