“CTO” ghosting “I will not promote”

I’m really sick of people agreeing to be a CTO (for equity), loving the idea, setting goals and roadmaps, and having multiple meetings where everything seems to be going well, only to completely ghost when it’s time to sign the contract. If you don’t think I’m a good fit, say that. If you don’t like the idea, say that. If you have any concerns, say that. Don’t waste your time, or mine,dragging something out if you’re not truly interested. No one is forcing you to be part of this vision. But if you are, act like it. Spending weeks building relationships, only to end up back at square one, is beyond frustrating. Has anyone else dealt with this, or is it just me?