I think if Lovecraft would have released his work today he also would have been harassed like this dev.
People should separate the artist from the art.
No, they shouldn't. Not in cases when two of these artists support harmful ideologies & political movement that have caused much harm in the world in the last few years (and even before that, though under a different name). GGers/alt-righters are 21st century nazis (there's no denying it, this "alt-right" re-naming BS is just a successful rebranding done to make them look less horrible and distance themselves from the baggage of nazis, but nazis they are), a homogenous group of mostly white men who think people wanting to improve the stature of other groups of people are something to be dealth with by whatever means.
If you want to monetarely support such people, that's your perogative, but don't you dare ignore the hateful ideologies behind GG & its supporters with shitty "separate artist from art, death of the artist" BS. You are directly giving money to people who support harassment of all kinds towards women, people of colour and different genders & sexualities who dare want better, more equal treatment in society. That's a fact and you can't hide from it behind silly statements like that.
He exactly said "modern feminism". There is many people (including feminists) who don't like this label nowadays but still agrees the equalitarism ideals behind the feminism.
Some because think it needs to go more radical, others because they consider it's being banalized by many people demanding or complains about stupid stuff instead of demanding important feminist related stuff, others because they think it's becoming too extremist and radical and even attacking men instead of seeking for equalitarism, others because consider it outdated because it should include other oppresed groups, etc.
I'm not sure about his views, but I think people went to bully/harass him too fast. But well, in any case it can't be justified to bully/harass someone.
The thing about feminism is that it doesn't try to grab all the power to a small group of people who'd dictate everything & gather all the wealth & power to themselves. It's pretty much the exact opposite. Feminists (outside of niche fringe elements) want power to be spread around between all kinds of groups of people vs. the rich white man dominated world we still live in. Feminism isn't perfect and there are arguments to be had as to how best forward the cause, and yes, feminism does often not do as good a job to represent people of colour as it should. But feminism isn't actively AGAINST them either like these nazi GGers are. It's more of a failure of feminist activists often being largely white (in NA & Europe) so they don't always take into account the plights of non-white people vs. these people being racist who do all they can to trample black people into submission.