A copyright notice like this on a webpage does not serve to assert your claim to the copyrights of the page. You get those automatically. They serve to assist third parties that are trying to find the copyright holder.
If I find an awesome poem published on a website and I'd like to use it, I have to find the copyright holder. The notice tells me; when (roughly) the poem was written, and who it was written by. I can then find the correct people and hopefully obtain a license.
In 50+ years the notice might tell me that the work is likely to be in the public domain. It won't tell me for sure, but it would be an indicator.
A date range tells me that the poem has been altered over the years. It was first written in X and last altered in Y. You certainly don't want a copyright notice that simply updates to the current year. You're then misleading any person who might be trying to find you. As has been mentioned before, putting an incorrect date would not change your actual copyrights.
I'm currently part of a project (in the UK) looking to simplify the rights processes (focussing on video atm). I've been to several meetings with copyright lawyers and attended some copyright workshops. IANAL though, I just know some.
If I find an awesome poem published on a website and I'd like to use it, I have to find the copyright holder. The notice tells me; when (roughly) the poem was written, and who it was written by. I can then find the correct people and hopefully obtain a license.
In 50+ years the notice might tell me that the work is likely to be in the public domain. It won't tell me for sure, but it would be an indicator.
A date range tells me that the poem has been altered over the years. It was first written in X and last altered in Y. You certainly don't want a copyright notice that simply updates to the current year. You're then misleading any person who might be trying to find you. As has been mentioned before, putting an incorrect date would not change your actual copyrights.
I'm currently part of a project (in the UK) looking to simplify the rights processes (focussing on video atm). I've been to several meetings with copyright lawyers and attended some copyright workshops. IANAL though, I just know some.