That’s fair. It definitely comes down to your own trust, but for me I’ve been using Sync for Reddit for roughly a decade and I’ve never seen anything sketchy from ljdawson.
I also don’t rely on just their word, I block this stuff on my own network anyway.
As for a refund, the 1-time payment to remove ads isn’t expensive (to me anyway) and depending on how much time you spend on the app it may have already been worth it.
But again it’s all your preference anyway. Nothing wrong with using a different app.
I’m another Alacritty user. It’s been my daily driver for years at this point and I have no complaints