Cabbie21. Don't let those few make you fearful. You add to the conversation and say what you think. I have taken some flak on Gransnet, but you will see there are a lot of kind people who come to your aid.
Sometimes I felt quite battered, but the choice was give up and retreat and that is simply not a choice for me. It can be with just a few maybe a handful, less who cannot address the issues so they attack the person, it's the lowest form of argument and debate.
My advice for what it's worth is stay on the moral high ground. Try really hard not to respond in a similar manner...very tempting to tell them to f.... 0... Just don't. I have adopted a phrase...play the ball not the person. Whenever these few start to target me instead of the issue, that is mostly how I respond whilst thinking something quite different.
Believe me there are lot's of people who will support it you start to be bullied. These people hide in the anonimity of the internet and pseudonyms if they were fact to face you can bet it would be a different story.
So don't be bullied into retreat.