If anyone is buying now, the person will never regret in the nearest future. For my believe, people buy bitcoin more than before. There transaction rate was congested because of the demand was higher than the supply.
If you are talking about the recent congestion, then it was because of Ordinals and their insriptions.
Having said that, most of the replies i'm reading is sounding more like Bitcoin is a get rich scheme, and some people are basically advising others to buy now and get rich later. Bitcoin definitely appreciates in value in the long term, but people still have to be cautious, they should invest only what they can afford to lose, and they must garner enough Bitcoin knowledge, if not they'll prolly lose their Bitcoin to scammers.