I dont think so. It wont solve this issue, user just wait another XX sec and then he will add another thanks/like. We need a complex solution... in future 
Anyone interested in adding new language support? Share your translations
Thanks

Anyone interested in adding new language support? Share your translations

[MyBB 1.8 Czech translation] [MyBB 1.8 plugins]: Prune old PMs + optimize DB plugin --- Thank you/like system