Doesn't matter, a company should always respond to a paying customer.
Yup , but will you respond to a customer who is paying say 50 cents a month only, and has a issue that he/she doesn't know how to access admin section of some script he got installed from some user and blames that your server is messed up and crap over and over, when you tell him to locate the admin folder or provide you with the script name so you can try to google something out.
But no the client decides to keep bitching and yapping that server sucks , you suck and other garbage instead of providing support the required info to help ?
Would you really care to respond million times the same thing ?? Think about it for a second.
Or is your time just has no value ? Remember hosts should have some self respect too you know after all they are humans only and if someone thinks that they paying their host to keep their sites online and are their bitches and hosts live with that , well i am not sure what sort of person/host that is anymore.
Hosting is not all about money,services etc etc. its about building up your own character and confidence that comes in handy later on.
Cheers