Wow, what a heated debate. I for one don't see the point of weaning - or rather introducing solids - before 6 months if it's of no benefit. There seems to be a lot of evidence that health-wise its safer to wait till 6 months when far more food is suitable.
However, in some cases it seems that medically or nutritionally it is of benefit to particular babies and I can't argue with them if they have received medical advice to start solids before 6 months.
Also, a lot of people don't have access to medical research and go by what their experienced mothers/sisters/friends have done, and usually that's to start from 4 months. They're not bad people for doing this. It actually seems sensible to learn from mothers around you, and understandable to go with what they say rather than current guidelines. I, on the other hand, disappoint my mum all the time by turning down most of her well intentioned advice in favour of the guidelines.
VS - I can see your point, but I'm appalled at the way you have put it across. I understand you feel strongly on the issue, but I don't think you'll persuade others by calling them names.
That's my tuppence worth. Probably not what you actually asked for mummy2t, but as a few others have said, if you want to continue, go slow and stick to baby rice for now. After 6 months there are a lot more foods to enjoy together.