Is this regulation a real threat against free speech?
edri.org
edri.org
On the other, it wouldn't be too hard to build some reasonable safeguards into a law like this to protect against obvious abuses while still maintaining the ability for small actors to safely hit back at large ones violating the clear spirit of it.
I think you're glossing over the entire point of why people are concerned. It _would_ be incredibly difficult to add safeguards.
As a side note, you should be aware a Slippery Slope Argument is not necessarily a fallacy. Whether it's a fallacy depends on the strength of the chain of conditions. I'm not normally a Wikipedia fan but their article is reasonably good: https://en.wikipedia.org/wiki/Slippery_slope
For example, here in Canada we have banned hate speech. Has this been used to stop bigots? Absolutely but the vast majority of the use of hate speech laws have been about shutting down political opponents. For example, https://en.wikipedia.org/wiki/Human_rights_complaints_agains...
Macleans is a left wing and highly factual publication from toronto. I dont personally read them but ever since Canada ended free speech there has been an ongoing attack to stop political discourse.