December Algo Ranking Change, Blog Impressions Down to Zero

Hi everyone, I'm a longtime SEO fan and lurker. I've been recently building a blog where I write about my technical experiences. I began writing for it in November 2024. I noticed in mid December(2024) that impressions went to zero. I took note of a December update. I did some SERP research on keywords that my post should rank for and they don't appear. The pages are indexed as I did a `site:mysite.com` search on Google and the web pages show up. No manual actions have taken place. ### A few points of concern - I ripped out 2 blog posts from a previous blog that I wrote(for a SAAS tool that is defunct). I did this because these were the 2 posts that we're pulling clicks to this website. Not sure if this duplicate content is an issue(that website is long gone). - I shared posts on reddit and hackernews. I noticed that other aggregators picked up the links. This had led to hundreds of backlinks. Could this influx in backlinks to a unknown website be hurting my site. It may look spammy Not really sure what to do here as I believe my posts have some real value for technical questions people may have on an somewhat obscure subject. Whenever I do shares on other sites, I get great feedback. For whatever reason there is a serp issue. Has anyone had a similar experience?