It might just be that if there’s an OpenSource option they prefer to use and support that, no need to have a threat to use something open.
Alternatively, maybe they want to create memes with their own personal images or text that they rather not upload anywhere. The reason for why they prefer some OpenSource option, maybe something to selfhost, is irrelevant to the question by OP.
What’s wrong with imgflip ? You can upload your own picture and caption it
It’s not opensource.
deleted by creator
It might just be that if there’s an OpenSource option they prefer to use and support that, no need to have a threat to use something open.
Alternatively, maybe they want to create memes with their own personal images or text that they rather not upload anywhere. The reason for why they prefer some OpenSource option, maybe something to selfhost, is irrelevant to the question by OP.
Why does it need to be proprietary?
He didn’t mention security concerns.