From https://news.ycombinator.com/newsfaq.html

> Are reposts ok?

> If a story has had significant attention in the last year or so, we kill reposts as duplicates. If not, a small number of reposts is ok.

It's not very clear, but something between 5 and 10 repost are too much. Specially if you repos the same three articles every day.

Don't expect to get much response if you continue to post the same thing. Moreover, some people will start to flag these stories.