It’s definitely laziness, but they’ll argue it’s lack of time (and lack of knowledge is really just too lazy to self inform). It’s not just a problem with open source, but commercial product support as well.

I’ve had customers who invest no effort in a support request then get annoyed when we try to politely extract what the actual issue is from them.

For open source I’d lean towards a policy of 0 investment from you, then 0 investment from me. You can always archive low effort issue reports to peruse at a later date when you have free time to see if you can discover something meaningful in them.