Holding, 1000 users day in day out, then i'd imagine yes.

(The following calculation may very well be incorrect, but it will give you an idea).

50GB is 51200mb (50*1024)
51200 divided by 30 (average number of days, in month)
leaves you with 1706mb per day bandwidth
dividing that by 1000 users, gives each user 1.7mb bandwidth per day.
1.7mb is 1740kb which in turn is 1782579k
and 1k is 1 character, so we are saying the average person can type 1782579 characters per day, saying the average sentence is 40 characters, thats 44564 lines per day they can type before you need to worry.

Eamonn.