A bunch of long term reddit users who dumped reddit are here now because it's one of the best alternatives. But reddit users are addicts so they're still using reddit to some degree and cross-posting stuff.
I was going to say the same thing, I think earlier this week there were 3 reddit posts on the front page at once, and they were all about reddit(api pricing and blow back from the community).
The number of submitted links to Reddit being submitted per day now is about the same as it was a month ago before the API controversy started, roughly 5 to 10 per day.
You are probably just noticing them more now because there have also been a bunch of recent submissions to articles about the current Reddit API controversy which is made you more likely to notice all things Reddit.