@Aklapper Frankly, I am flabbergasted.

@Aklapper I have read one of the links which you have provided, and I quote from it:
[about implemented limitation]
"it does seem to have pacified Wikinger's thank activity and there are no negative comments from fresh users who are unable to thank for edits more than they ought to." ;
"I would propose we revert this change. If Wikinger returns then I would be in support of making this a permanent change."
"I can only agree with Wpedzich: this limitation should be permanent on pl.wikipedia. Also, it should not be reverted without clear support from pl.wiki community."
"Such restriction WON'T be permanent. " [...] t will be reverted at some day, even if the community didn't agree (and even if there will be a explicit consensus to NOT DO this)."

I am new to this service, so can somebody explain to me the situation in plain words and without techno-babble.
We have serious problem at PL-Wikipedia with Wikinger registering new accounts and then sending tens of dozens of "thanks" to our best editors he hates.
"Thank you" feature is a pleasant but spurious gadget, with no relation to creating useful Wikipedia content.
The limit of "thanks" was limited for newbies to 3/day, which helped to alleviate the problem. Recently the limit has been lifted, giving him again a free reign to abuse editors.