> If you use --will-cite in scripts to be run by others you are making it harder for others to see the citation notice. The development of GNU parallel is indirectly financed through citations, so if your users do not know they should cite then you are making it harder to finance development. However, if you pay 10000 EUR, you have done your part to finance future development and should feel free to use --will-cite in scripts.
> If you do not want to help financing future development by letting other users see the citation notice or by paying, then please consider using another tool instead of GNU parallel. You can find some of the alternatives in man parallel_alternatives.