Wherever copyright is applicable, the public should retain it, that's what public domain is for. Any derived works, commercial or otherwise should also be in the public domain.
If you fight for "public access" so that you can make your own stuff locked behind a copyright, then you are the hypocrite here.
The credit is due to the volunteers or governments that created the data, and not the project that collates it (their names are not displayed). The logic behind wikipedia doesn't translate to OSM b/c OSM is providing data to be reused
If this requirement wasn't there in the first place then OSM maps would have been the default go-to map and a household name like wikipedia. You wouldn't need to force an ad in every map to self-promote.
> Attribution is also a requirement of many proprietary map providers
the project had the opportunity to do something truly different and unique and chose not to... what a missed opportunity.
Meanwhile OSM says that you may "fade/collapse the attribution ... automatically on map interaction" among other possibilities (https://osmfoundation.org/wiki/Licence/Attribution_Guideline...). It being licensed the way it is, you can use Leaflet.js or whatever else instead of the copy they host, if you really don't like their iframe...
I guess in the big picture it just rubs me the wrong way a bit. I just find it mildly absurd that if I take a screenshot of OSMand on my phone and send it to a friend, that I've broken the law. It'd like to live in a world where that's not the case.
It's like if Project Gutenburg mandated everyone had to include a cover page with their name on every book they distribute. It doesn't make it unusable or horrible, but it's just a general feeling "ah, so close but they missed the mark".
It could have been a truly open repository of data and instead it's just so slightly not that (and in a way that's so minor that no one will ever bother to re-make a truly no-strings-attached version :) )