Unique input IDs in Freeform Apologies if this has already been brought up but shouldn't each input have a unique id? I assumed Freeform would prepend the input ids with the form id or something but it seems it just duplicates ids everywhere. Doesn't seem great for what is a pretty expensive plugin.
Solution for Freeform 3:

Preventing duplicated field id:
Set a custom field id prefix. Using the form handle might be a good id, as long as you're not using the same form twice on the same page.

Preventing duplicated form id:
Manually adjust the form id parameter to something unique.