By silly do you mean a real attempt at something seen as fantasty like (magic)? If so, in that case ignoring any Christian/Muslim/(Others religions which hold similiar doctrine vs magic) beliefs then they are not only hurting themselves but also society. Themselves since they are being delusional and therefore a candidate for treatment (maybe even shock therapy), and society since who will foot the bill but us. Now from the aforementioned religion's stand point they would only be hurting themselves, though certain followers might take offense and become judgemental and/or offensive. If you meant silly for another reason then I confess complete confusion and go back to chanting "EVIL
- I tell you just pure EVIL they is why they even have two nostrels..."