Conclude whatever you like, my understanding is that Instagram video directly killed Vine after the big creators had meetings with Vine executives about getting paid to stay on Vine. I guess that could be considered a lack of investment, but it can't be ignored that Instagram captured the creator base.
https://www.theverge.com/2016/10/28/13456208/why-vine-died-t...
"Former executives say that a major competitive challenged emerged in the form of Instagram, which introduced 15-second video clips in June 2013. “Instagram video was the beginning of the end,” one former executive told me. “[Vine] didn’t move fast enough to differentiate.” Instagram courted celebrities with longer videos, eventually bumping the limit to a more flexible 60 seconds. (Vines didn’t break the 6-second barrier until earlier this year, and its extended videos never caught on.) Instagram also began promoting celebrity accounts in its popular “explore” tab, bringing them attention that Vine found difficult to match. Marketers began shifting their money away from Vine, and stars followed."
I don't really think that's the case. I'd still argue lack of investment from Twitter is what killed Vine.
>TikTok didn't fill a void, it's a fantastic video app that did a lot of things right.
Agree it's fair to say TikTok carved their own path to where they are today, but a lot of the same Vine-energy lives on in TikTok.