What is the ratio again? For everyone who bothers to sign a petition, another 100 agree with it. Or something like that.
I don't see that at all. You would need just a mere 1% to establish a 100% agreement.
There will be many or some that agree but don't sign, but they cannot be very strong with that agreement, if they can't be bothered signing. Its a numbers game, nothing can be implied.
In this day and age, there will also be a proportion who sign just because other people they know signed and they do not want to be the only non-joiners...
Combined with the fact that clicking a quick mouse button etc is not much of an effort and you'll certainly have a another proportion who aren't THAT bothered but it was easy to do and their husband, wife, partner, girlfriend or whatever was doing it so they thought they would.
Compare it with the Countryside March when Blair was banning fox hunting: 300,000 - 400,000 actual people (depending on who's count you believe) turned up in London (i.e. the entire population of Wellington!) to the largest protest rally Britain had ever seen - and they were ignored...! I would not really expect an online petition to be much more than opium for the masses.
Different era..cant compare.