Lil devils x said:
1) Beards are often as filthy as toilets
http://www.koat.com/news/some-beards-as-dirty-as-toilets/32675046
That's not a reason not to have a beard. That's a reason to have good hygiene. Also, the article is not a scientific study, but a non-scientific entry it a new-mexican TV network.
For one, many types of intestine-type bacteria can be found on the skin, and some proper scientific studies have actually found that men with beards have less of certain possibly dangerous bacteria.
http://www.theguardian.com/fashion/2015/may/04/no-need-for-men-to-get-flush-faced-about-faeces-in-beards
2) Beards make you more susceptible to parasites.
http://www.cdc.gov/parasites/lice/
That's not a reason to not have a beard. That's a reason not to put your face in some strangers strange strange. Because, as you can see in your own link, otherwise you need to get rid of eyebrows and eyelashes as well to reduce risk.
3)Beards make you more susceptible to fungus.
http://dermnetnz.org/fungal/tinea-barbae.html
Acutally, Tinea Barbae is a fungus that is almost entirely extinct. And the most common way of catching it was by getting shaved by filthy shaving equipment. So keeping your beard would actually reduce the risk of the fungus.
http://emedicine.medscape.com/article/1091252-overview#a0199
4) Beard odor is repulsive.
http://timesofindia.indiatimes.com/life-style/beauty/Make-sure-your-beard-smells-right-this-Movember/articleshow/45087959.cms
Again, not really a reason not to have a beard. More like a reason to keep good hygiene. If you want to get rid of repulsive odors: never wear shoes.
5) Having a beard makes you less attractive to most women.
http://gizmodo.com/5893506/scientific-proof-that-women-hate-beards
Actually, the attractiveness of beards rely more on novelty than beards itself. Also, societal trends heavily affect this perception. Finally, the latest word on what could be considered most attractive right now is not clean-shaven or a full beard, but rather heavy stubble.
http://uk.businessinsider.com/women-are-attracted-to-this-facial-hair-2015-2?r=US