Idea for a small project. (Patreon)

I have this idea for a small project for some time, but not sure if it's worth to pursue.
So I want to know what you all think.

I don't plan to profit from it, just think that is something that some people might enjoy, that why I don't mind if someone want to try to create it themselves.

The main focus of the project is to find buddies to talk to, there is quite a few applications for romance, but not so much to find friends. I do regularly see people sad that it's hard to find people that they can chat.

My idea so far:
Create a Discord bot, you can send a big text to it, talking about the stuff you like and dislike, the advantage on this is that you can put really specific information, like how much you like to watch speed runs from parappa the rapper.
The bot send the text to ChatGPT, to do a sentiment analysis. It send this data to a dabase.
The bot then try to find users that share similar interest that you like.

It's pretty simple really, nothing groundbreaking expect the use of ChatGPT.
I did some simple tests this morning and GPT4 seen to work well for that, but it would also get pretty expensive.

So this is it, I would probably finish this anyway if it was not the price for GPT4, but since it may get a little expensive, I would like to first ask if someone would want to use a service like that.