My list of seller red flags


I’ve compiled a list of annoying things sellers do. If I see any of these red flags I will not buy from them. Ideally every seller should agree to not do any of these before they are allowed to sell online.

- Overpriced
- Don’t talk about any flaws
- Keep re-posting
- Use unrelated keywords in ad so ad comes up when you search for different brand
- Paranoid language like " Cash and Carry only", "No spammers", No Trades...
- Using all CAPS and !!! marks

- Used car salesman lingo like"only $xxx , a great deal, a steal , and the worse, RARE "
- Ad consists entirely of copy/pasted info. from manufacturer website
- Any textspeak
- Gimmicky pricing like $999 or $995 or the worse, random price like $927
- Saying price is "Firm"..

- Reducing price by insignificant amount to bump ad
- Tooting own horn, i.e describing how awesome their product is.. Comes across as desperate to me..
- Seller saying they will lose money or taking a big loss .. Not my problem..

- Selling several items in one ad and updating the ad to say "SOLD" on certain items.
12inch45rpm
If someone with perfect extensive feedback is offering an item I want at a great price in great condition and the price is firm...
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What about selling? I’m selling an amp now and the best offer I have is from a person who has no feedback. What are the possible pitfalls?
We all started with zero feedback.  If you're fortunate the deal will complete with satisfaction on both sides.  But what if a buyer wins an auction then doesn't pay, or is slow to pay?  Or, the buyer is unreasonably demanding and wants a refund for a minor cosmetic defect which was fully disclosed in the description?  This can happen with any sale and any buyer.  But at least if there's feedback you can make a more informed decision about dealing with that buyer.   
I think a buyer that provides such an extensive list of red flags is almost guaranteed to be a difficult person to work with. The gall of a seller to stand firm on their price! Please give an example a non-gimmicky price.