It was the same thing for us with Qt Commercial licensing. We use only the LGPL version, dynamically link, don't modify the source, and give credit, so we're fully in compliance. To get support we chose to purchase commercial licenses for our small team of developers. Cue a regular series of calls about whether we were sure we were in compliance, etc. To add insult to injury they couldn't even navigate our purchasing process so it was a pain to pay them.

I'll take my chances in the open source world. It's a shame that the companies that created the software aren't getting paid, truly. But don't make it so obnoxious to reward you.

The best thing a company can ever do is block downloads.oracle.com at the firewall.