At the risk of stereotyping a bit here (from personal experience), Wordpress users tend to be a lot less technical than C programmers, and I find the less technical the audience, the more entitled they tend to be. My theory is that because they don't sling code themselves, they just don't understand how much work and effort goes in to making good software. Because they don't understand it, they tend to not appreciate it.
I’m not sure it’s quite this simple. I maintain a popular video player and as such many of our users are nontechnical but some are more familiar with some of the options that are offered than I am myself. Whether someone is entitled really depends on…whether they’re just entitled in general, I think. I get people saying that we should “just add complicated xyz feature” who clearly don’t know the complexity involved, but then people with just as much experience leave issues like “I love your software so much but it is crashing every time I launch it (actually a one line fix, which they don’t know), can you please take a look at this, I’d really appreciate it” which is like the perfect issue. On the other hand I get technical issues with people filing pull requests to fix them but then sometimes I need to say something they won’t like such as “we don’t want this feature” or “we can’t work on this” and I’ll get a range of responses there too.
