Someone I know has a daughter finishing uni. Known her many years but more as the wife of my husband's mate than as a close friend....but friendly over the years. Barely know the daughter at all.
I used to teach the daughter's degree subject and have marked dissertations. Out of the blue the mum texts and asks if I would read and comment on her diss before submission. I said 'yes, of course'. Asked her if daughter wanted SPAG etc or just content; daughter popped up in same conversation and said 'both please'.
So I did my best and took about 1.5 hrs marking it properly, with comments and ideas, and sent it back saying she was welcome to take on board any or all or none of what I'd said. Also sent a couple of learning resources on the bits she hadn't done so far.
And I got an immediate bounce-back with one word: 'thanks'. She couldn't have read it at that point or even opened the file. And then - nothing at all from mum or daughter.
AIBU to have at least expected something a bit more sincere for the time and effort I spent? I was happy to do it but it strikes me as quite rude not to say something like 'thanks for taking the time to do this, the comments were helpful' or 'thanks, I submitted on time' or even 'I couldn't use most of your stuff but thanks for trying'...?