What people don't understand is that the time we invest in writing is time we do not invest in doing something else. Something that could get us remunerated. I very much doubt that anyone on here has only light novel/YY novel/webnovel-writing as a job. I am pretty sure many of us have obligations, come back home from bad days at work, etc. and sit down and write. Just for the readers. Just because someone at some point liked something we did and we do not want to let that person down.
So, isn't it normal to give a hand to the creator? To pay for that chapter of that novel you like so much? If it were me, I could assure you that your money wouldn't finance a trip to Barbados, but rather go towards my paying my monthly bill. Maybe I am projecting, but I have the impression that this would be the case for the majority of creators on here.