Perhaps the channel owner did then?
That's the most likely scenario. Which is why I liked the Google+ integration where every comment you made was also posted on Google+ and the channel owner could only delete the Youtube half. Sadly the Google+ integration was removed after a year or so.
do your d-tubes still play?
No they don't. There is a huge disadvantage with dTube: You need upvotes to keep your video on the IPFS server. Enough upvotes to get approx. a $0.10 payout. Which keeps your video up for a year or 15 month.
Upvotes is everything here on Steemit. They are incredibly important.
Steemit is very capitalistic. You can make money here but you also have to pay for stuff. Even opening the account wasn't free. It costs Ȿ 5.00. But that was payed by a sponsor.
The same sponsor who is currently lending you 14½ steem power to keep your account up and running.
Everybody can gain Steem (Ȿ) and steem power by
- making postings and hoping someone votes them up
- making comments and hoping someone votes them up.
- up-voting other users postings and comments (called curation).
- Buying Steem on Block trades
The mistake many YouTuber who come here and think putting up contend is enough. But it's not.
To prevent exploitation of the system every user has only an average of 10 meaningful upvotes a day. You can do 15 one day and 5 the next. But over time it should be 10.
That makes upvotes valuable. It is important that you use your upvotes.