Part of altruism is the understanding that you are sacrificing energy for a cause that you may not see realised. All altruism is, unfortunately, a gamble. This will hopefully not put anyone off future altruistic acts, as all movements must start somewhere.

If you have used moment.js in a project then please consider contacting the author with a note of appreciation. This won't solve everything, and won't change the world, but will hopefully alleviate the depression and anxiety of someone who has made your lives easier.