I am with @Helen350 . Sorry, I do not agree with @Dylan-and-Lizette0 and @John1574
Most of the internet flaming occurs not cos of the subject, but cos of the way some poster write his thougths, in most of cases to show off or attack someone.
I understand that personal attack is not allowed, not only in this community, but also in the great majority of communities in the internet.
I understand your point, @Stepanie and sometimes it is necessary to close a thread when some topic becomes a battle field. Certainly you did the right thing to do.
If I may offer some suggestion about this type os situation, I think that the CMs should name and shame the ones who was behaving wrongly. So the other community members would understand what happend. ( Or at least send a warning via private message).
In some cases it would be necessary only to erase the posts of the ones who was involved in personal attacks and save the thread.
If most of the posts of the topic are pure personal attack... than the entire thread should be closed.