This one is for the grammarians on here.
Some 30 yrs ago, many in engineering & computer science were taught that "datum" was singular and that "data" was plural. Now a days, I routinely come across passages like "the data is stored in ..." in print. I usually write "the data set is..." to avoid a slip-up.
Perhaps I'm splitting hairs here but I thought the forum/fora rule applied to datum/data, akin to criterion/criteria.
#FactsMatter...your feelings not so much.