In my humble opinion, you should do what you think is right or not and if you are able to do it.
If you really like the game and you can help the DEVs regardless of the value, surely with more support they can improve the game even more, be it buying better equipment, assets for characters and scenarios, even hiring more team members and with that having more updates with shorter intervals!
but it all depends on your financial condition and your judgment and sense of justice, regardless of what other people do or say they do