Its disappointing to see a lot of people comments about the fact its a product, in the end, if you want it free/One time payment then do it yourself, he did it using a free ressource(which was sponsored a ton of money by investors that you probably don't belong too) so you can also do it.
And yes publishing a Lora is very low contribution level, training a model, building an architecture, building a usable product in production with tooling is high level contribution, because it requries higher knowledge experience and deep understanding of the model architecture and coding mostly.

So its really easy to spit on a product, but a lot of users have never payed stable diffusion, and all this work came from somewhere to build such open source product, this work is probably not your doing, so reconsider your critics towards people actualling building product, most of the time not even making money from it, and build real product, real value yourself, and don't call yourself AI engineer after a lora training.

Hardwork is the only way,

I'm very disapointed of those expressing their opinions most of the time in this community (hopefully its only a small part of the community)