I agree intent matters. But if the intent is to strike, which is what my posts are in the context of, the intent is obviously to cause headaches. That's what strikes do - cause inconvenience (less production, picket lines slowing traffic into/out of the workplace, etc.) so that demands can be heard.
>Put another way, if I and a group of friends coordinate to call your office and tie up all of your phone lines, should there be legal consequences for my group?
I think this is somewhat detached - your friends aren't striking workers trying to make a point - but I think it somewhat depends on what easily available mitigations I could employ. Can I simply block the numbers? Then I should do that. Can I rate-limit the number of times a certain number can call me? Then I should do that as well.
More illustratively, if my phone system is poorly designed and only accepts 1 phone call every 5 minutes or it crashes, should there be legal consequences for someone who calls twice in that 5 minute period? I say this, because if a website has no rate-limiting, no captcha, and can easily fall over -- is it really solely the fault of the striking workers who manually submit applications?