Can't say I care much whether or not the crossword source is given. So long as we are given the number of letters and any given ones.
If Fiona's idea of separate "boardlettes" is taken up it will finish this site. Everybody will be asking for 4,12,15a and 3,11,16 d. Even the DT brigade largely came to agree that this approach is not much use.
As far as I am concerned people can ask what they like. If I can help, I will. Having said that I have to agree with Mr Griffen. Some people are too idle to make any effort themselves and are effectively having their quiz completed by others.
I suppose the satisfaction for most people like this is that they can boast to their friends that THEY have finished it and may win a prize. Sad.