Multicoin Capital doesn't look like they're getting out of the market any time soon. My guess is that deleting those tweets means that they want a fresh new start after their recer partnership with Bitwise,
"Multicoin Capital Partners With Bitwise and Matthew Ball for Metaverse Crypto Index, Fund" (Source)Since the article Multicoin Capital building Bitwise partnership was published in early June but Multicoin Capital's twitter account didn't post any official statement about the partnership on its account, until now there hasn't been any posting but logical and convincing reasons that they have lost asset value on the wrong project investment. The bear market in the last week has suppressed the collapse of many new projects and there is little chance that new projects will survive and follow the market recovery.