I suspect this isn't going to accomplish much of anything and may even backfire. According to published statistics by Reddit as of this writing, this subreddit has 755k subscribers and over 45,000 members online right now. For comparison, the official politics subreddit has 5.2 million subscribers but fewer online members (42,000). r/the_donald has an extraordinarily high level of activity and engagement. So long as r/the_donald exists and is maintained, it can act as a sort of black hole so that official subreddits can be heavily moderated to support certain platforms, politicians, and advertisers. If it were actually shut down, though, the users there are so numerous and active that it probably wouldn't be possible to maintain r/politics or other official subreddits in their current moderated state.
Perhaps worse, this quarantined state -- which really doesn't accomplish or do anything of substance -- just creates a sense of martyrdom in the already extremely active userbase there. I suspect this will energize them 10-fold.
Perhaps worse, this quarantined state -- which really doesn't accomplish or do anything of substance -- just creates a sense of martyrdom in the already extremely active userbase there. I suspect this will energize them 10-fold.