A maximum of 10 reps per 24 hours period, not a "day" per say, but 24 hours...Like I did my "Valentine" Reps yesterday around lunch...

Shared the love! and I couldn't rep again until today after 1 pm.
Now as far as coming back around to repping the same person.. yes, there has to be a 20 person -s-p-r-e-a-d- between being able to come back around and repping them again. So doing the math... if you maxed out 10 per day, it would technically be a 48 hour time period before you were able to come back to that person.
and just as an FYI....
DISAPPROVES do
NOT count as part of the 20 person spread...
Yes, we did an experiment just too see if it would.
Hope this helps,
X
and ps... if you rep someone and don't see their point total change any at all.. it's ok.... the person you repped will still see the "comments" you made when you did the rep... there's still a technical glitch going on right now...