Restrictions on using wordpress for monetizing websites/domain names

Are there any restrictions on using wordpress for monetizing websites, if a person will have a large number of wordpress websites, does anyone object?

Absolutely not. Wordpress is a great option if you’re looking to develop mini-sites and stuff. I wouldn’t use it for parking purposes unless you had your own marketplace parking script. Wordpress is great, but only if you’re actually looking to develop the domain. If you just want to park, use a company!