The frontpage currently has a banner up where people can leave a heart with a comment when they have finished their donations. The comments will be cross-posted here.
However, you can also post on this thread any time, especially with longer explanations of where you have given this year, and why.
I haven't engaged with this topic much with relations to EA, this was more in a vegan context several years ago so that I don't have specific sources in mind off the top of my head. But it's typically in the direction of "It's like someone holding slaves while donating money against slavery"; or arguing that there is no such thing as merciful killing, so that just improving conditions is meaningless if we still hold them in cages and breed them just to eat/exploit them. Like kicking dogs for fun and then doing things to "kick less dogs" instead of stopping altogether, etc.
So it's still stuck in my head as a hypocritical action from me, redirecting money from other causes to one I don't even personally live up to. I can imagine seeing more nuanced takes in an EA context, hence I want to read up on this more.