In fact you can see how many times you got tipped BY other users, because the tips have to be given for one post - Hover the "Tip post" button over that post - don't click it. You will see two links showing up: "Tip jar" | "What is this?" - Now click Tip jar and you have a list of how many times you got tipped, how much gold you earned through it and recent tippers.
But you can't see how many times YOU tipped other users, but this Achievement wasn't glitched (for me), so I got the 50/100 tip-Achievements accurately.
But because of the very -
VERY - glitched Loiterer Achievement the devs promised a counter for Achievements that need several actions to be granted. They said this feature will be active "in the next days". ...Whatever timespan this is
rofl