APRS uses internet based linking extensively nowadays. I’d be very surprised if any APRS messages from central Europe could get to the APRS2SOTA server in the UK without using APRS-IS somewhere. CW skimmers also use internet linking to report what they are hearing, but they are, in reality, no different to normal chasers. Chasers and skimmers listen to radio and spot what they hear, one automatically and one manually.
If you are taking a purist view of using RF not internet linking etc., which is how I read your comments, then you should probably avoid using APRS.