The link didn't work for me either but I went to the homepage and put in pushy parents and went to the link for gifted kids.
It didn't say much. More of an article written by someone who had a deadline and works from home, but I did copy the last few lines, summarizing the thoughts:
One of the most important early experiences that will stimulate a child's brain development is sensitive and nurturing care. Children, all children, need to know they are loved for who they are and not for their abilities. This is especially important for gifted children, whose abilities are exceptional, because parents often feel it is essential for those abilities to be maximized, often regardless of the children's feelings and desires.
Children who are pushed and pressured are at risk for emotional problems, such as depression, which can lead to serious consequences like suicide.
Advice to parents is relatively simple: provide nurturing experiences for your child, but don't allow your desires for a brilliant and successful offspring to determine your decisions.
