I really don't understand the toxicity here.. People saying that 'you shouldn't do things just for recognition/gold starts/reward/cv/etc are insane to me?
Do they have jobs? If so, to make these kinds of comments imo they should be working completely for free. Salary is a form of recognition for contribution.
Personally, adding a co-author (even if the final solution ends up different to the one proposed, but the solution is based around the findings of the original solution) is such a tiny thing to do. I think the author has a valid point to moan about this.. it isn't the first and won't be the last instance of somebody feeling their contribution to something is going unrecognised.
Do they have jobs? If so, to make these kinds of comments imo they should be working completely for free. Salary is a form of recognition for contribution.
Personally, adding a co-author (even if the final solution ends up different to the one proposed, but the solution is based around the findings of the original solution) is such a tiny thing to do. I think the author has a valid point to moan about this.. it isn't the first and won't be the last instance of somebody feeling their contribution to something is going unrecognised.