Sometimes it would be nice to have more characters for question headings. If more characters are needed, the heading could scale down.
I think this is an interesting point. One of the hardest things to do with design is cater for user provided data, and this (along with node labeling) has been a persistent pain point.
The choice we faced during development was to guarantee the integrity of the overall layout, by (sometimes harshly) restricting the amount of text that could be displayed, or allowing researchers to enter “too much” text (thereby creating other knock on effects).
Perhaps we should reconsider our choice to go with the first option…?