Only because other conferences are doing it, you don’t have to – the benefit to your conference and its community matters.
A few times I received suggestions for changes in ECRTS motivated by “but the other conferences are doing”. This sounds to me like schoolyard peer pressure ala “all the other kids have sneakers of brand X, why can’t I? – They hurt your feet. – But I don’t want to stand out”.
I do not see the argument in that: what other conferences do can be wrong, geared towards another community or a segment thereof, or simply not aligned with the guidelines set for our conference.
I believe we need diversity of conferences. In particular in a small community, having more or less the same people running more or less similar conferences with more or less similar rules, hurts the community. One bad aspect, if applied to all conferences with affect the entire community.
We need different conferences with different goals, different procedures, different expectations of papers to serve not only one segment, but the entire community with our conferences. One size does not fit all.
Input on procedures is valuable, so analyze the suggestion, see if it fits the overall guidelines, take a step back to look not only at the symptom at hand, but the bigger picture, and then decide.