Let’s look at important things here –
Moon - Moon represents Mind, Emotions, Mother, Local Government, Peace of Mind, Home Environment, Water, Milk etc.
Dhanishtha Nakshatra - It is a nakshatra related with wealth, luxury and lavish life. It is also a nakshatra related with music. Also, it is a nakshatra of celibacy. Please check this link for more info on Dhanishtha Nakshatra - https://www.astrosaxena.com/Dhannaksh.
Capricorn - As Dhanishtha is part of Capricorn sign, Capricorn and things represented by Capricorn are also important here. Capricorn is the 10th sign of zodiac belt, hence it represents many things related with 10th house of horoscope like Law and Order, Government, Authority, Organisation, Discipline etc. Besides it also represents World outside your home and people, Fear and Anxiety etc. Capricorn is consisted of next 2 and half Nakshatra, i.e. Uttar-Ashadha, Shravana and Dhanishtha. Capricorn is ruled by Saturn and that's why it represents Fear and Anxiety.
Aquarius - As Dhanishtha is also a part of Aquarius sign, Aquarius and things represented by Aquarius are also important here. Aquarius is 11th sign of zodiac belt, hence it signifies the things and energy related with 11th house of horoscope, such as Gains, Desires, Hopes and Wishes, Large Organisations, Network Circles etc. Besides this, Aquarius also represents Scientific Thinking & Research, Uplifting the Society, Higher Goals & Rewards for all. Aquarius is made of another set of 2 and half Nakshatra, i.e. Dhanishtha, Satabhisha and Purva-Bhadrapada. Aquarius Lord is Saturn & Rahu.
Mars - As Mars rules Dhanishtha, Mars's position and dignity is important to know about the overall functioning of any planet in Dhanishtha.
Saturn & Rahu - As Saturn rules Capricorn & Aquarius and Rahu co-rules Aquarius, their position and dignity is important to know about the overall functioning of any planet in Dhanishtha/Capricorn and Dhanishtha/Aquarius.
Houses Involved – Also, we can’t afford to forget the houses involved as a planet can be ruling different houses and sitting in different house for every person as per ascendant and planet’s position. To know overall affect, we have to consider the houses involved as those areas of life are being impacted.
Interpretation of Moon in Dhanishtha Nakshatra – Now, Moon is in Dhanishtha Nakshatra which is by name itself a financeor wealth oriented nakshatra. So, these people can be very good with financial matters. Even if they don't go into financial nature of career but still they are good at managing money and calculative with their finances. They may desire to live a very lavish life. Another field they can be good at is music. As Dhanishtha is represented by Drums and Flutes, they can be good at music. More into instrumental music rather than vocal. Now, in Capricorn portion of Dhanishtha, they will try to gain authority & recognition through their finance/music related pursuits but in Aquarius portion, they may try to serve people through it. Their (Moon in Dhanishtha/Aquarius) main purpose will be about serving people and not to gain, command or show their authority. Also, as Moon is one relationship oriented planet by which we try to mentally connect with others and as Dhanishtha is nakshatra of celibacy or at least major relationship conflicts due to mythological story linked with it, these people can either be disinclined towards relationship or even if they get into it they may have serious troubles in connecting with their partner, especially if Moon rules relationship oriented house. As always, they will inherit these traits from their Mother.
Role of Mars – As Mars rules Dhanishtha, we need to see Mars's position to understand direction Moon is getting in chart.
Role of Saturn & Rahu - Also, Saturn-Rahu placement is important to guide Moon in right direction, being Capricorn & Aquarius lords.
Other Factors – And of course, we need to consider conjunction, aspects, house lordship, house position and dashas etc to know the exact results of Moon in Dhanishtha. So, we always need to take a holistic view of chart rather than just 1 planetary position.
Conclusion – So, this is how I see Moon in Dhanishtha can work in a chart.
Hope this helps. Please post any comment or query you may have.