Not here, but I have seen many comments on other sites that imply this will be a burden on small companies implementing this and worrying about whether they are compliant with some rules that can be interpreted in different ways. Also answering requests for information which range from the benign and can be automated to the letter which caused a stir on linkedin [1] and can be viewed as complex and costly for a small business to answer.
The reason why I talk about small companies, in a lot of cases another already overworked person will need to wear another hat and may or may not do a good enough job. Verses the larger ones, they can implement a small task force and get this out of the way.
I know some commenters on HN would disagree with this and mention that these smaller businesses who don't adopt GDPR should go out of business. But I largely disagree. Businesses which close due to regulations, results in larger market shares to those left standing. Meaning that competition and what largely benefits the consumer dwindles down. Another knock on to this would mean that prices go up, due to those same regulations.
However, what I haven't seen talked about which I wonder if it will make the GDPR moot. Is that Trump is currently engaging in a trade war and I wonder if any lobbying attempts are being made for him to exempt US companies from it[2]?
[1]: https://www.linkedin.com/pulse/nightmare-letter-subject-acce...
[2]: https://martechtoday.com/president-trump-save-us-from-the-gd...