The votes are from vote trails. People that follow a specific person or a specific curator in hopes of spreading their vote among accounts that put out quality content. A lot of the larger accounts use vote trails and various curation efforts to spread their vote out among a lot of different people. Voting manually can take a lot of time and effort, so vote trails are used by a lot of large accounts.

I'm not much into videos anywhere, 3speak as far as I know is it's own entity like dtube, or bitchute or youtube. They are tied into the hive block chain so people can vote and give a reward to video posters on 3speak.

Building a reputation on 3speak and Hive are pretty much the same as most places. It simply takes time. I know over on youtube people can "BUY" followers for their accounts. On Hive Block chain, (actually Steem block chain), there used to be a problem with what were known as Vote Bots. Most people did not like them as they artificially put some pretty poor content on the trending page. When Hive split from steem, that was one of the first things to die off.

Some people think that content on Hive block chain should be exclusive to Hive. Others see Hive and 3speak as places to cross post their stuff to so it is always available no matter what the centralized facilities do to delete content. Their content will have a place for people to reach. There has been talk from some people of getting Youtube stars to post on Hive since Hive started out. You certainly have a valuable reputation on most of the other video hosting places so you fit target content producer so many spoke of in the past and still speak of today.

Words are easy for people to type, backing them up is quite another thing. I hope you do find a following on Hive, I hope you do give it at least a good six month try. I think both Hive and yourself will benefit from the relationship. I wish it were a faster and easier process, but it is mostly about taking the time to let the account grow.