Sometimes I wonder if these people asking for free work load has ever picked up a pencil and draw a panel. I understand writing a story can be time consuming but honestly, it doesnāt beat hours of research and drawing. When you are done, now you gotta illustrate then color it and then add text to it. Itās A LOT of work. Back in the day this kind of task was split because of the enormous workload that came with it. Most comic company's still do it the old fashioned way.
So back to your question, just like everyone has said, they feel safer. They donāt get to see the peopleās faces they are asking and with that, the feel no remorse when they ask for such things. I donāt think itās worth it unless you really do need to collaborate to gain experience or just for fun.
Another thing I dislike about some people asking for collaboration is that they tend to use the word āmy comicā. āMy storyā, āmy ideaā. When you are done establishing āIā, itās āNO LONGERā, a collaboration. Itās just you looking for someone to slave wage for āfreeā on āyour ideaā that could maybe make it and āmaybeā the artist gets paid.
As an artist I donāt have time for āmaybesā, maybe itās because I work full time and pay bills.
Iām not against collaboration. I believe itās a great way to network, learn and grow for both sides ( artists and writers)