Not sure which one to use, is it ok to keep all 3?
About forms, I'm still doing some planning, it looks doable but I'm just worried my lack of experience from only being self taught might cause bugs.
What I've come up with so far involves a process of creating temporary keys and verifying them. I'm trying to find ways to increase usability so that it's simple and worth it for a poll creator to set it up. I think it should be very straightforward to use if I do it right, but I will find out with more planning and testing.
I'll update you with a more detailed plan once I'm happy with it.
In terms of interactive with linkify, my idea might involve adjusting the embed link slightly to automatically create and pre-fill a voting key (maybe), and perhaps use localstorage to detect if a vote is made to embed a thank you instead of the poll.
It looks like a lot of effort for a simple idea (one vote per person), but I would like to give it a go. Even if it doesn't work out for some reason, it looks like an interesting project to try.
For now, do you think it'll be ok to embed forms without it?
P.S.
I just checked strawpoll, and it has an embed feature: