My impression is that Instapaper team is terribly understaffed and probably lost control over it's code base. They had changed hands twice over the years (Betaworks (Digg) 2013 and Pinterest 2016) with practically zero changes in code or the app. Zero progress, zero updates. That says something.
And the instapaper.com when downloading is sharing data with third parties like there is no tomorrow. Simply it is downloading a lot of crap from original sites (images etc.) which could be used for tracking - no way they could be compliant with GDPR and let user decide which third parties to share data with.
And the instapaper.com when downloading is sharing data with third parties like there is no tomorrow. Simply it is downloading a lot of crap from original sites (images etc.) which could be used for tracking - no way they could be compliant with GDPR and let user decide which third parties to share data with.