Fun story! At a conference, I asked this vendor (the company collapsed now) if I can see their documentation. The obvious sales person made a big stink how it's only for paid customers and I can see it when I paid.

I told him how stupid it was since his competitors have their docs open.

During a conference's event where they parade their sponsors, the vendor got on stage and called me out with "And paid customers will have a wealth of support, like developer documentation... Especially for you [name]".

In my nerd rage, I shouted from the audience "What kind of shit software is afraid to share their developer docs publicly?" I was escorted out by security.

And during the night event when everyone mingles (including sponsors), the guy didn't show up. And apparently, news got around where by the last day of the event, the entire booth was taken down.

I dunno if it was me shouting and everyone agreeing with me, or the conference realizing that attacking a paid member of the audience wasn't a good idea and told him to leave.

Either way... Tell it to their faces when their product isn't dev friendly. These charlatans seem to get bolder and bolder with their garbage.