I've read their reports before. When there's not enough information to reproduce, they do a good job of asking for more information first, and I've never seen a reasonable good-faith report elicit anything overt.

If you failed to give them proper reproduction information when asked, then yeah, you were wasting their time and they should rightfully close your issue.

I've never seen anyone on the curl team undeservedly "lambast" someone, and for a project that has a quite good reputation, I think the burden of proof is on you. Can you link to these supposedly terrifying comments?