This is a very true statement, but it's also a completely irrelevent one. Remarks do not become MORE offensive just because more people see or hear them, they simply become just as offensive to more people. You can't increase the severity of punishment for offensive remarks on the mere basis that more people are exposed to them. That's nonsense.
In any case, having laws against "offending" people is a very disturbing trend for any nation with even a pretension to free speech and democratic process. Progressives, nationalists, secularists and militant atheists offend me very deeply on a regular basis, but I don't call for them to be locked up for it, (and not just because I know it would be counterproductive to do so).
There are, and should be, some laws limiting freedom of speech. You dont, and shouldnt, have the freedom to tell lies about someone, for example. But I don't see how the growth of social media justifies any extension to those laws at all.
No it doesn't. Solution is simple. Any post that would lead to a charge of offensive behaviour if shouted in a public place is charged as the same if published in the interspace.
Don't worry...you won't be alone with these kinds of laws. We have hate crimes now in the U.S. which are basically thought crimes. If the trend towards socialist presidents keeps going after Obama is out, expect to see Dem pols push for tougher laws against "harmful" speech. Of course, that harmful speech must be directed against certain, select ethnic groups. Otherwise it doesn't count. Eventually we'll get rid of that pesky first amendment.