You sound bitter, so I am not even sure why you would be hanging around this sub. But to answer your question, and assuming that a farang wants to live in Thailand, the benefits of being a citizen are almost uncountable:
1. No need to give up your other citizenship unless you are citizen of a relatively small number of countries who require that.
2. No more need to waste time or money on visas, keep a large deposit of money in the bank, or purchase an expensive long term visa under one of the several schemes.
3. No need for 90 day reporting.
4. Free to start and run a business, or do any job you want.
5. Free to own land and or a home without engaging in risky workarounds.
6. Qualify for various universal health care schemes.
7. Visa free entry to ASEAN countries.
8. No hassles opening up bank accounts, applying for 7/11 cards, etc. and etc.
9. Thai pricing at national parks, which can be up to 10 times cheaper than farang prices.
And much, much more. If that's doesn't seem worthwhile for you I don't know what more to say.