I'm not in any voting block! You need to go make the acquaintance of Mr. Occam. The simpler explanation is that people with 10k+ reputation get access to a tool that shows the questions with the highest number of delete votes. All it takes is a single delete vote for a question to show up on that list. Anyone checking that list can decide to add a vote. It only takes three votes! Hence, no voting block.
Regarding the statement that 20+ is a lot of delete votes in a day: every two or three days, I'll use the tool that shows questions in order of when they were closed. There are 278 pages of closed questions, about 20 per page. Over five thousand closed questions sitting around. Now, that includes migrated questions, which I think should be deleted automatically after a month or so, but that's still a lot of questions.
When I do use this tool, I'll usually try to go through two pages worth of closed questions (starting from about page 7, which is where the two-day-old questions usually start). About 1/3 of these wind up being migrated, so they can't be deleted. Of the rest, I find that 80% were closed for good and clear reason, and I'll vote to delete. Perhaps another 10%, I find that were closed for questionable reasons, and I do nothing, or else I may add a comment questioning the closure. I may edit a little.
But in about 10% of the cases, I find that I disagree with the closure, and I'll vote to reopen. I may first do some serious editing, or try to correspond with the OP to get clarification. These are often cases where a question is closed as "not a real question" either because of bad English, or because the closers misunderstand the technology the question is about.
So, don't even portray me as some mad deleter!