Web forms, is it better to add at top or bottom
I have been using web forms to populate existing sheets with new data. But I have a question as to whether it is better to have new data at the top of the sheet or the bottom?
1. I see that updates are referenced by row number, so if I have data come in and an update request is sent out. And then new data is added at the top, will the update request still be valid?
2. I have seen data being added to the bottom of the sheet causing blank rows to be added. Is this only the case with adding to the bottom?
I can see advantages and disadvantages to both solutions. Is there one "Best practices" answer?