@fontella
People worship rock bands, sports teams, historical characters (even met a Napoleon worshipper - they are bordering on fanaticism), film stars, celebrities etc. That's why you see crowds outside film premieres and so on.
These people just happen to be fans of Royalty and a royal birth is a big occasion for them. You don't know their personal circumstances - they could be lonely, have learning disabilities or mental health issues or they could just love the Royals. So what?
I don't see anyone slagging off Football team supporters or people who travel hundreds of miles to see their favourite band or performer.
It's easy to mock and deride. Leave them alone - they are doing no-one any harm.
All of this. I am a Royalist and always have been, so is the rest of my family, for several generations. I went to see Charles and Di get wed, and Sarah and Andy, and Kate and Wills. Each time, with my family and some friends. It was a blast; great fun, with lots of great atmosphere and I loved it every time.
I don't give a rat's bollock if people don't like them and think they're 'leeches' and benefit scroungers, (and other bullshit phrases that the haters come out with,) but as the poster above said, no-one ever comes out with such hate and venom about people who are obsessed with football, tennis, golf, or any other kind of sport, or anyone who's obsessed with music or film stars.
And what amazes me, is how people make a POINT of posting to say how they are soooo not interested in them. Why are you posting about them then? Just so you can let the whole world how 'uninterested' in them you are. 
@Scaramoose
Calling the fans LOOPY just makes you look like a massive twat tbh..... and frankly, a little bit nasty.