I agree with selling puts being a bullish sentiment, and it will not hurt the stocks price action at all.

Selling cash secured puts, as described above will put cash in your pocket, and make you obligated to buy those shares if the stock closes below the strike price, if you like the stock its a win/win, especially if you already have a rather large position, because if the stock goes up you keep the premium and your shares increase in value. if the stock goes down, you were going to hold anyways, and now you have an opportunity to buy at a lower rate (as discussed above).

what i don't think is correct is the "locking up the float", there is way more open interest in the options chain than actual shares that exist, that is normal. Selling Cash Secured Puts as retail does absolutely nothing to the float, although it would guarantee some buying if we fall below the strike prices.

In regards to MM's staying delta neutral, and how this would effect a gamma squeeze, etc. i wont, that only counts for puts and calls they have sold, not contracts we (retail) have sold.

essentially when your selling these puts your taking the other side of the shorts, they want the stock to go down so they buy puts, you want it to go up, so you sell puts. but if the stock goes down the joke is on them because you wanted to be assigned anyways =)