Similar to the last point, the term Calvinism excites people in my church who I don’t want excited. Dr. Michael Horton, a Calvinist theologian, describes as entering the “cage phase” those who’ve recently become Calvinists and are so enthused by their new understanding that they not only can’t stop talking about it (24/7). Like fundamentalists handing out Chick tracks at Willow Creek, they unyieldingly force themselves upon others in order to “convert them to the truth.” (The truth being their brand of Calvinism). It amazes me the boldness “cage-phase’rs” possess in talking with other Christians about Calvinism but then amazingly transform into shrinking violets when it comes to talking with non-Christians about Christ. That’s not something I want to promote on either front.
Finally (and ultimately) I’d rather my people come to an understanding of the doctrines of grace from an exposure to Scripture than an exposure to a system. I will have failed if they say, “I believe in election because I’m a Calvinist,” when they should proclaim, “I believe in election because I believe the Bible.” I’m not anti-systems; on the contrary, everyone believes systemically whether we realize it or not. However, I want people to look to God’s Word as the final arbiter of whether something is true or false. If at any point a system doesn’t line up with Scripture then, at least at that point, we reject that system’s understanding. This isn’t a good practice for only Calvinism, but Arminianism, Dispensationalism, and likely every other “-ism” you might hold.